How Do Solar Panels Work? - edHelper€¦ · Harry Truman By Meg Leonard Harry Truman was our thirty-third president. ... "Sure, Mom. I'll figure out something." Mom gave him a peck

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How Do Solar Panels Work?By Cindy Grigg

Many homes today use solar panels to make electricity. Some cars are powered by solar panels. Spacecraft use solar panels for energy. How do solar panels work?

A solar panel is made up of many small solar cells. Each cell uses light energy from the sun to make electricity. When you turn on a light switch, electrons move through the electric cord and light up the bulb. (Electrons are small parts of atoms that have negative electrical charges.) That flow of electrons is electricity.

Solar cells use light to make electrons move. Solar cells have two layers stuck together. The first layer has many electrons. It has a negative electrical charge. The second layer has some electrons taken away. It has a positive electrical charge. It is ready to receive more electrons.

When sunlight hits an electron in the first layer, it jumps to the second layer. That electron makes another electron move, which makes another electron move, and so on.The light starts the movement of electrons from one layer to the other. The flow of electricity that results can be used right then or stored in a battery for later use.

Solar energy is a renewable energy source. Solar energy is not perfect, though. The panels must be installed where sunlight can reach them for many hours each day. Panels must be able to stand up to the weather. Heat, cold, wind, rain, and hail can damage the panels. The panels are expensive but not very efficient. Hopefully, inventors will be able to find new and better ways to harness the power of the sun. Then solar power may become cheaper and more practical in the future.

How Do Solar Panels Work?

Questions

1. This story was written for the purpose of ______.

A. narrating a storyB. describing a scientific conceptC. informing readersD. persuading readers

2. Solar panels are made up of:

A. many electronsB. many atomsC. many solar cellsD. none of the above

3. Paragraph 3: What happens when something with a positive charge and a negative charge are put next to each other?

A. Nothing happens.B. They attract each other.C. They repel each other.

4. Solar energy is a ______ energy source.

A. renewableB. non-renewable

edhelper.com Fifth Grade Reading Comprehension and Math

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5. What happens when solar panels make electricity?

A. It must be used right then.B. It can be stored and used later.C. both A and B

Find the difference between 358 and 157.

Subtract 39 from 400. What number is 443 less than 532?

(12 x 9) - 12E, H, F, K, G, N, H,

, I, T

3 67

+ 6 57

1512

, 164, 1

8, (1) ,

, (64) , (512) ,

(4,096) , (32,768)

Estimate quickly the difference.6,630 - 2,180

The diameter of a circle is 474 cm. What is the radius of this circle?

The perimeter of a rectangle is 24 cm. The longer side is 8 cm. How long is the shorter side?

Yummy Donuts gave three dozen chocolate donuts and five dozen jelly donuts to the school. How many donuts did they give?

Write the missing family fact.15 x 5 = 755 x 15 = 7575 ÷ 5 = 15

F, , J, L, N, P, R,

T, V, X, Z

A toy car can go 5 mph. How long would it take to go 13 miles?

What is 50% of 974?



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The fourth grade, fifth grade, and sixth grade classes made popcorn balls for the winter carnival. The fourth grade class made twice as many as the fifth grade class. The fifth grade class made 36 popcorn balls. The fourth grade class made three times as many as the sixth grade class. How many popcorn balls did the three classes make in all?

Hunter laid out a garden and planted cherry

tomatoes, grape tomatoes, yellow tomatoes,

and huge red beefsteak tomatoes. The

garden was 39 feet long and 29 feet wide. If

he planted beefsteak tomatoes on 13

of

the space, how much space (square feet)

was left for the other tomatoes? Round your

answer to the nearest whole square foot.

How many meows are equal to 16 barks?

16 barks = 4 snorts12 snorts = 60 gobbles80 gobbles = 48 meows

Write 9,028,927 in words.8 cm = mm


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2 0 . 60 . 5

x 6 7 2 . 1

Reduce 535

to its lowest

terms.

16 - 611 - 2

3 = 11 - 5

6 + 1

10 =

Write the reciprocal.8

Write the reciprocal.

246


23

2n = 8 6n = 42N10

= 12

5 - 8 =Rewrite 14 - 4

+ =

Rewrite 14 - 11

+ =




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0 . 8- 0 . 5

What is the sum of 4.3 and 9.7? 5 . 2

- 3 . 8 2

3 2x 4 3

9 1x 5 7

4 0 8 2,x 4

Sketch a right angle named CDE.

Sketch an obtuse angle named GHI.

Sketch an acute angle named ABC.

Write as a decimal.

2 46100

Write as a decimal.Four and fifty-seven hundredths

Write as a decimal.One hundred ninety thousandths

Change to a decimal.51%

Write the ratio as a fraction.3 girls to 5 boys Write as a percent.

512




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Harry TrumanBy Meg Leonard

Harry Truman was our thirty-third president. He became president when Franklin Roosevelt died. Truman was Roosevelt's third vice president during his four terms in office. Truman was born in Missouri in 1884. He was a farmer for twelve years. He served in World War I. He was elected to the Senate in 1934. Truman had to make some tough decisions as president. He decided to drop atomic bombs on Japan. The day after the second bomb was dropped, Japan asked for peace. World War II was over. Truman was there when the United Nations formed. This group hoped to maintain peace in the world. Truman carried on many things that Roosevelt started. He had a new plan for the country called the Fair Deal. Truman was elected to his own term in 1948. During the second term, the country entered the Korean War. He chose not to run for another term. In 1953, Truman retired to Missouri. He died in 1972.

Harry Truman

Questions

1. Who was Harry Truman?

A. the thirty-first presidentB. the thirty-third presidentC. the thirty-second presidentD. the thirtieth president

2. Who was president before Truman?

A. PierceB. Theodore RooseveltC. Franklin RooseveltD. Coolidge

3. In which of the following wars was Truman NOT involved?

A. Korean WarB. Vietnam WarC. World War IID. World War I

4. Which group formed during Truman's presidency?

A. DemocratsB. RepublicansC. Peace CorpsD. United Nations



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5. What event made Japan ask for peace at the end of World War II?

-8 + 6 = 110 ÷ -10 = -40 ÷ 8 =

Write 612

in lowest

terms.

2 49

+ 9 49


7, 25, 11, 43, 79, 133,

, 467, 855, 1577,

2899, 5331, 9807

Draw a number line

with 0, 12, and 1. Show

where 512

would go. Is

512

closer to 0, 12, or 1?

64 divided by 8 equals

How much time is it from 6:00 a.m. to 11:45 a.m.?

It was 77 degrees outside. What would the temperature be if it got 11 degrees colder?

Round 5,405 to the nearest thousand.



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Justin was having so much fun making cupcakes for his class. He made 3 24

dozen of

them! But there are only 21 kids in his class. Luckily everyone ate one cupcake except for

April. How many cupcakes are left over?

6 x 7 - 9 + 11 Write a 3-digit odd number. What number is halfway between 0 and 14?

9, 9, 2, 9, 9, 2, 9, 9, 2,

9, , 2

How many total legs are on 24 elephants.

double 40 =

word root ad can mean to or toward admission, admit




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Mrs. Hernandez sent an e-mail out to parents asking them to send balloons to class.

Sarah brought in 12

as many balloons as Justin. Justin brought in 14

as many balloons

as Erin. Who brought in the most balloons?

Did you guess Erin? You would be correct. She brought in 56 balloons! How many

balloons did Sarah and Justin bring to class?

Sketch 2 lines AB and TU that are intersecting.

What kind of angle is this?

÷ 11 = 9

14, 16, 18, , 22, 24Name the shape with eight sides and eight angles.




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Playing at a ClipBy Beth Beutler

Donald sighed. He was getting bored. He'd been hanging around in Mom's office for an hour now. He had a half day of school, and his mom still had to work a full day. So during her lunch hour, she ran to the school to get him and brought him back to her office.

At first, Donald colored on scrap paper. Then, he helped Mom by putting some labels on envelopes. That had taken about 30 minutes. After that, Mom had said, "Sweetie, I have to go to a meeting down the hall. Will you be able to occupy yourself here for a little while?"

"Sure, Mom. I'll figure out something."

Mom gave him a peck on the top of the head, grabbed a file folder, and headed out the door.

Donald sighed again and pulled out the drawer under the main surface of Mom's desk. He found a box of paper clips. Absentmindedly,he began to attach the paper clips together into a long string. Before long, he had a long chain and decided to measure it. He looked around the office and found a yard stick tucked by the back of a four-drawer file cabinet. Laying the chain out alongside the yard stick, he discovered that it was over four feet long!

Donald began to use his imagination. He pretended he was a hero in medieval times who had been imprisoned for defending his king. Invaders had attacked his country and he fought back, but they overcame him. He used the paper clip chain to attach himself to his mother's office chair.

A few minutes later, Mom returned to her office.

"How was your meeting, Mom?" Donald asked.

"Boring," Mom said with a grin. "What've you been doing?" she asked.

"I'm a strong warrior who has been subdued by the enemy. They have chained me to this chair, but I will escape!" Don raised his right arm up sharply, breaking the paper clip chain.

Mom giggled. "You had more fun than I did. How about if I make a necklace?"

Mom began to put paper clips together to form a necklace and began to share with Donald.

"Did you know you are not the first person to use paper clips in support of a king?" Mom asked.

"Really?" replied Donald.

"Yes," Mom answered. "During World War II, the Nazis invaded Norway. The people were not allowed to show loyalty to their king by wearing buttons with his initials. So instead, they came up with the idea of wearing paper clips. This showed their stand against the occupation and loyalty to their own king."

"How about that?" Donald replied. "And I thought paper clips were just for clipping sheets of paper together."

"Well, that is their primary purpose," Mom added. "Originally, people would use ribbon through small holes in the paper to attach sheets together. This was done as far back as the 13th century. Several hundred years later in 1899, a Norwegian inventor named Johan Vaaler received the patent for the paper clip."

"How do you know this stuff, Mom?"

"We had a trivia contest in our office this summer, and one of the questions was about the history of the paper



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clip."

"Sounds like you do have fun at work sometimes, Mom."

"Most of the time I do, especially when neat kids get to visit me!" Mom answered, as she tugged playfully at the paper clip chain still hanging around Donald's arm.

Playing at a Clip

Questions

1. Why did Donald have to be at his mom's office for the afternoon?

2. Which of the following items was NOT mentioned as being in Mom's office?

A. Correction fluidB. File folderC. Yard stickD. Paper clips

3. Donald's paper clip chain ended up being over ______ feet long.

A. fourB. fiveC. threeD. two

4. What did Norwegians do to show support for their king during the war?

5. People used to use ribbon to attach papers together.

A. falseB. true

6. Which happened first?

A. Mom picked Donald up from school.B. Mom left for a meeting.C. Donald made a paper clip chain.

7. What word did Mom use to describe her meeting?



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8. Who received a patent for the paper clip?

Write 36 in lowest

terms.

Round the decimal 0.535 to the nearest hundredth.

How many meters are there in 153 kilometers?

It was 4 degrees above zero in the morning. By afternoon the temperature rose 15 degrees. How warm was it?

70 divided by 7 equals Know how many inches in a foot? Okay, smarty pants,how many inches in 5 feet?

The area of a rectangle

is 45 cm2 . What could

the length of the 4 sides

be?

2 x 12 - 9 Write the missing family fact.4 x 18 = 7272 ÷ 4 = 1818 x 4 = 72


45, 64, , 102, 121,

140, 159

It was 88 degrees outside. What would the temperature be if it got 29 degrees colder?

word root ortho can mean straight orthodontist, orthopedics



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Ms. Thompson bought 12

of a bushel of

zucchini to put on her neighbor's porch. The

zucchini cost $21.88 per bushel. She also

bought a basket for $7.67 and 1.75 yards of

ribbon at $0.75 per yard. Her neighbor was

very pleased with the pretty basket of

zucchini. How much did Ms. Thompson spend?

Adam, Jordan, Jacob, Peter, and Hunter play in Little League. Peter can hit farther than Jacob and Adam. Jordan can hit farther than Peter. Jacob can hit farther than Hunter. Jordan can hit farther than Jacob. Which one of the boys can hit the greatest distance?

Sally bought a kit to make fidgets. The box says that you can make up to 36 fidgets. Sally

tried to make one. It took her 39 seconds to make. How many fidgets can she make in an

hour? Assume she takes a 10-second break after making each fidget.

15 + n = 43 7 + n = 39 x - 11 = 4




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Adam wanted to make a poster for Save Your Smile Week. He thought it would be fun to put how many minutes someone might spend brushing and flossing each year on the poster. If a person spends 20 minutes per day brushing and flossing,how long would that person spend in a year? (Use 365 days for one year.)

Alex laid out a garden and planted cherry

tomatoes, grape tomatoes, yellow tomatoes,

and huge red beefsteak tomatoes. The

garden was 36 feet long and 25 feet wide.

If he planted beefsteak tomatoes on 13

of the space, how much space (square

feet) was left for the other tomatoes?

Round your answer to the nearest whole

square foot.

The perimeter of a rectangle is 20 cm. The longer side is 8 cm. How long is the shorter side?

What is 50% of 1,382? It was 2 degrees below zero in the morning. By afternoon the temperature rose 29 degrees. How warm was it?

Gavin went to the store and bought 5 batteries. Each battery cost $1.08. He also bought a flashlight for $6.66. He had $7.16 left. How much money did he start with?

David gave his little brother a book about cows. He read the book to him. He started reading at 3:26 p.m. and finished at 4:43 p.m.How long did it take David to read the book?

It was such pandemonium! On Friday, 246 students brought their pets to school. Two-thirds of the pets were dogs. How many were not dogs?

How many kilograms are in 4,000 grams?

kilograms

Place a comma correctly into the sentence.

Holding the pencil in my hand I walked to the science room.




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Megan is working on a piece of art from recycled materials. She has 16 bottles that are each 8 inches long. She also has 18 paper towel rolls that are 13 inches long."Hmm," says Megan to herself. "I want to make the largest square using these pieces. How can I do it?"Megan only needs to make the lines of a square. For example, she could use 4 bottles lined up next to each other on each side. That would make sides of 32 inches. But that isn't the biggest square she can make. That's for you to work on! Fun, eh?

Show your work.




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Thomas Jefferson: A Man of BooksBy Kathleen W. Redman

Thomas Jefferson was the third president of the United States. He was born on April 13, 1743, in Virginia. He loved to learn. He loved to read. He spent his lifetime collecting books. He learned about science. He read about religion and philosophy. He learned to speak other languages. He was a great writer, too. He was one of the writers of the Declaration of Independence.

Jefferson was the third of ten children in his family. He started school in 1752. He started studying Latin, Greek, and French when he was nine years old. He learned to ride horses and learned to study nature. From all his studies,he learned to love reading.

Jefferson went to study at the College of William and Mary when he was sixteen years old. He worked hard. He studied many subjects. His love of reading helped him graduate from college with honors. He became a lawyer in 1767.

Soon after, Jefferson started work on Monticello. This mansion was his home for the rest of his life. It still stands today near Charlottesville, Virginia. He worked to fill his mansion with books. His jobs and world travels allowed him to collect many books. He saw books as a key to knowledge.

"I cannot live without books," Jefferson once said.

By the early 1800s, he had collected more than six thousand books. His collection is an important part of American history. In 1815, he sold his books to the Library of Congress for nearly twenty-four thousand dollars.

Jefferson's studies helped him become one of America's greatest presidents. He was the primary author of the Declaration of Independence. His powerful writing helped shape America.

Jefferson had many jobs. He served as the governor of Virginia. He was the minister to France. He was a surveyor, too. He used his jobs as a way to encourage others to read. He wanted everyone to read and learn.

Jefferson believed that everyone should be able to get an education. Only very rich people could go to college then. Jefferson founded the University of Virginia. It was a public college. The people of Virginia paid taxes to support the school.

Jefferson died on July 4, 1826, fifty years after signing the Declaration of Independence.

Thomas Jefferson: A Man of Books

Questions

1. Which of these statements from the article is an opinion?

A. Jefferson founded the University of Virginia.B. His powerful writing helped shape America.C. Jefferson was one of the writers of the Declaration of Independence.D. Thomas Jefferson was the third president of the United States.



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2. What kind of article is this?

A. science fictionB. mysteryC. biographyD. autobiography

3. Thomas Jefferson was the ______ president of the United States.

A. thirdB. tenthC. secondD. first

4. What important document did Thomas Jefferson help write?

5. What did Jefferson once say he could not live without?

6. Monticello is the name of Jefferson's home. Where is it located?

A. in Washington, D.C.B. near Charlottesville, VirginiaC. in Salem, OregonD. near Baltimore, Maryland

7. What college did Jefferson found?

A. University of IdahoB. University of FloridaC. William and MaryD. University of Virginia

8. Jefferson believed that everyone should be able to get ______.

A. an educationB. a raiseC. a jobD. a musical instrument



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Oops! It was No Housework Day. That meant Jessica had to make her own breakfast. She didn't know how to cook, so she got her mother's recipe book. She would make biscuits. "Let's see," she thought. I need one-fourth of a cup of milk. That will make 6 biscuits, but I want to make 14 biscuits. How much milk do I need?" How much milk does Jessica need to make 14 biscuits?

Megan had been looking forward to Hoodie Hoo Day for at least three weeks. She had planned a "Dress Up Your Pet" contest for the day. There would be a parade and the best-dressed pet would be chosen. Finally Hoodie Hoo Day arrived and the pets paraded in front of the judges. There were so many entrants that the parade took 35 minutes from start to finish. If the parade started at 3:40 p.m., what time was it over? Oh, by the way, Justin's pet lizard (dressed like a cowboy) won the prize!

Make a coordinate grid where you can plot x and y values from 0 to 11. Remember x goes

to the right and y goes up. Plot these points: (7, 1), (5, 1), (5, 7), and (7, 7). What is the

perimeter of the rectangle you drew?

Yummy Donuts gave two dozen chocolate donuts and six dozen jelly donuts to the school. How many donuts did they give?

The radius of a circle is 287 cm. What is the diameter of this circle?

What is the area of a rectangle with sides 5 cm and 6 cm?




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71 - 60 = 80 - 43 = 27 - 15 =

52 - 30 = 99 - 70 = 39 - 25 =

93 - 53 = 87 - 74 = 59 - 14 =

73 - 23 = 99 - 50 = 40 - 15 =

+

138

99 39

+

136

76

+

151

52

+

67

54

+

138

99

+

127

96

+

56

23

+

138

99

6995-

6391-

8914-

0895-

5552-

5734-

3912-

3581-

8902-

2755-

8983-

9572-




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+

58 22

61+

17

+

70 20

91+

53

53+

40

56+

+

13+

18 8 5

+

62+

34+

26 12

94+

51+ +

31 20 22

86+

24+

62+

+

6+ +

21+

9 3 30 11 12 9

+

44+

53+

+

30+ +

25+

7 6 24 11 7 18

Write as a decimal.

7100

Write as a decimal.

20 610

Write as a decimal.Eight and four hundredths

word root mis can mean bad or wrong misnomer




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This fraction is not in simplest form. When this fraction is reduced to simplest form, the

numerator is 2 less and the denominator is 8 less. Whew! That's confusing! The numerator

of this fraction is 3. What is this fraction?

In triangle DEF the degree measure of angle D is 11o more than the degree measure of E. If the degree measure of F is 73o, what is the measure of all the angles in triangle DEF?




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Neighbors Living Near a Nuclear Power PlantBy Jennifer Kenny

Bob and Jill are next-door neighbors in New York. One evening, Jill was walking outside and ran into Bob.

"Hi, Jill," Bob said. "How are things?"

"Fine, Bob," Jill answered. "How are you?"

"I'm fine," Bob responded. "Where are you off to?"

"You don't really want to know, Bob," Jill said. "We've had this conversation before."

"Don't tell me you are headed to the meeting about the nuclear power plant. I told you it's perfectly safe," Bob said.

"Bob," Jill asked, "why do you think it's so safe?"

Bob answered, "The energy that is generated is efficient. Nuclear reactors need little fuel. The waste produced is so much smaller than that at a coal-burning plant. The chance of getting sick from a nuclear power plant accident is a lot less than from dying of a respiratory illness caused by a coal burning plant. Nuclear power plants don't produce carbon dioxide, so they do not add to the greenhouse effect or cause acid rain."

"I know you keep telling me that," Jill said. "However, even though the cost is low in terms of fuel, it is very expensive because the radioactive waste must be stored, containment is expensive, and emergency costs add up. In fact, I heard that the wastes must be stored permanently for millions of years. Is that true?"

"Yes, it is," said Bob. "Nuclear waste needs to be contained until it loses its radioactivity. I wish, though, that you could appreciate the incredible process at a nuclear power plant. A pound of uranium that could power an aircraft carrier could make enough energy equal to a million gallons of gas. That uranium bundle in a nuclear reactor acts as an incredible source of heat. The plant itself is so clean. The steel and concrete containment vessel really does protect us from any leaks."

Jill said, "I can appreciate the science behind it. However, I am concerned about the what-ifs. What if there were a terrorist attack?"

"I know that's a concern since September 11th. Of course, the thought creeps into everyone's heads. There are so many new safeguards in place, though. Many things would have to go wrong - one thing after another. In the event that something went wrong, there's an evacuation plan," Bob said.

"Yes," Jill agreed, "but how could that really work? The plan calls for the evacuation of everyone in a ten mile radius. These roads are filled during rush hour. How could we possibly get out of here? What about my children at school? How would I get to them?"

Bob interrupted, "They do practice exercises all the time. France uses nuclear power to generate 75% of its electricity. Right here, Indian Point supplies power to millions of homes."

"Yes," Jill agreed. "However, twenty million people live within 50 miles of Indian Point. It's only 35 miles from New York City. A core meltdown could cause thousands or millions of deaths. Even the owners admit it would take almost ten hours to evacuate just the ten miles around it. Could you imagine what the damage to lives and the economy would be?"

"I just don't agree with those fears, though," Bob said.

"I know you don't, Bill," Jill said. "However, I'm just not as comfortable with this kind of plant as you are, so I am going to the meeting to listen and learn."



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Neighbors Living Near a Nuclear Power Plant

Questions

1. Bob and Jill are ______.

A. best friendsB. cousinsC. brother and sisterD. neighbors

2. Bob and Jill live in ______.

A. PennsylvaniaB. New JerseyC. ConnecticutD. New York

3. Which statement is true about nuclear power plants?

A. The energy generated is efficient.B. The nuclear reactors need little fuel.C. They don't add to the greenhouse effect.D. all of the above

4. The radioactive waste from a nuclear power plant must be stored for millions of years.

A. falseB. true

5. Evacuation around Indian Point includes ______.

A. a 10 mile radiusB. a 100 mile radiusC. a 20 mile radiusD. a 50 mile radius

6. France uses nuclear power to generate 100% of its electricity.

A. trueB. false

7. Jill's main concerns involve ______.

A. locationB. costC. fear of a leak, attack, and poor evacuation conditionsD. none of the above

Which is the smallest?

86.2 ÷ 8.1 86.2 ÷ 8.3 86.2 ÷ 8.2

Write this as a number in standard form. Use a comma in your number.

four hundred ninety-five thousand, two hundred sixty



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Penguins have about 70 feathers per square inch. How many feathers would a penguin have on one square foot? (Hint: There are 144 square inches in one square foot.)

Jack built a bookshelf for

his best friend. He used

three boards that were

two feet long and one foot

wide for the shelves. He

used two boards that

were 4 34

feet long and

one foot wide for the sides.

How many square feet of

wood did he use?

There are 268 students in our school. One-sixth of them have never seen a log cabin. How many of the students have seen a log cabin?

108, 117, 126, 135,

, 153, 162, 171, 180,

189

A rectangle is 25 cm on one side and 13 cm on another side. What is the perimeter?

Round 13,606 to the nearest thousand.

The cotton candy vendor made a profit of 44 cents on every bag of cotton candy he sold. At that rate, how much profit would he make on 118 bags of cotton candy?

The mass of Anne's cat is 19 grams more than Emma's cat. Amy's cat is 63 grams more than twice the mass of Emma's cat. Emma's cat's mass is 1,383 grams. What is the mass of Amy's cat?

Rosa cooked fried chicken for her family. It took her 40 minutes to cook the chicken. If she started cooking the chicken at 5:32 p.m.,what time did she finish it?




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Ms. Floop began her lecture, "Although the correct dates might depend on your point of view, many people in the United States would accept that the war in Vietnam lasted from 1961 until 1975." How long did the war last?

It is a very good toad season. Toads are everywhere! You decide to go out at night and count how many are in the front yard. Last night you counted sixteen. Tonight you find twenty-nine. How many more are there tonight compared to last night?

Ms. Floop was planning her garden plot. She had 20 feet of fencing to use, which would be needed to keep deer and rabbits out. What are the possible length and width combinations she could choose for her garden?

There are two common ways of converting a mixed number into a percent. One involves addition and the other does not.Explain both of these ways.

Homer documented the Pleiades and Hyades bright star cluster in about 750 B.C.In 1590 Tycho Brahe completed a catalog of 777 stars. How much time passed between these two documents?

Explain how the phrase "over, over, and up" might be used to help remember an important starting procedure used to divide one decimal number by another.

As of 1997, Hoo Sateow of Chang Mai, Thailand, had the world's longest hair. At that time his hair was 203 inches long. Write the length of his hair in feet and inches.

Adam set four sticks in a square arrangement. The sticks were 15.2 inches long. What was the area enclosed by the sticks?

The pirates took 8 14

bars of gold and divided

them up between 4

groups of pirates. How

much of a bar of gold did

each group get?




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Mr. Walker went to the store to buy half-pint and pint jars for his wife to use for her homemade mustard. Half-pint jars come in boxes of 12. Pint jars come in boxes of 9. What is the least number of boxes of half-pint and pint jars he will have to buy to have the same number of each size jar?

Band Director Bob Reed and vocalist Marcia Taylor met, fell in love, and got married. In time they had their first child, a daughter. They named her Claire Annette Reed! Right after Claire Annette's 21st birthday, she sued her parents for $1.4 million for giving her such a silly name. The judge heard the case and awarded Claire Annette 63% of what she had requested. How much money was Claire Annette awarded by the judge?

Justin reads very fast. Sometimes he isn't sure what he has read, he reads so fast. He can read 6.5 pages in 0.2 hours. How many pages can he read in 3 hours?

Jacob had moved to

England from the United

States. When he went to

the physician's office, he

was told that he weighed 11 34

stones. How much did

he weigh in pounds? (One

stone = 14 pounds.)

Jenna deposited $79.07into her bank account. This increased her balance by about 2.5%. How much money is in her account?

Mr. Bloop gave each of 15

students 3 23

ounces of

water-based paint. How

many ounces of paint did

he distribute?

Mr. Bloop weighed two of his roosters. One weighed 1.1 kg, and the other weighed 460 g less. How much did the second rooster weigh?

Wendy cubed 6, squared 10, and then found the product of the two results. What was the product?




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North vs. South: Strengths and WeaknessesBy Cathy Pearl

When the Civil War started, both sides thought that the war would be over soon. Both sides thought that they would win easily. They also thought they were fighting the war for the right reasons. The Union planned an aggressive attack against the South. The North wanted to go to war to save the Union. At first, ending slavery was not a goal of the war.

People in the South felt they were fighting to save their way of life. They felt that they were fighting to gain their freedom. They compared the war to the Revolutionary War.

Both sides had strengths and weaknesses. The South had one big advantage. Soldiers knew the forests well. They knew the best places to hide. It is easier to defend land that a person knows well. The trees also helped to protect Southern soldiers when the Union army invaded.

Another advantage the South had was that many men had grown up around guns and horses. They knew how to hunt and live off the land. This helped them adjust to being soldiers. They were comfortable firing guns and knew how to handle them.

Many of the best military leaders were in the South. During the war Lincoln had trouble finding generals that could match the skill that those in the South had. Robert E. Lee had a tough time deciding which side to fight for. Lincoln asked him to command the Union army. Lee was from Virginia. When Virginia seceded, he chose his home state over the Union. He became the commander of the Confederate army in the South.

There were also things that put the South at a disadvantage. One of the main weaknesses was their economy. They did not have factories like those in the North. They could not quickly make guns and other supplies that were needed. The South's lack of a railroad system was another weakness. There weren't a lot of railroads in the South. Also, many of the tracks did not connect to each other. The tracks went between two points and stopped. This made it hard to move troops and supplies.

The North had both strengths and weaknesses, too. There were a lot more free people living in the North than there were in the South. This meant there were a lot more men who could serve in the army. These extra people could also grow more food and work in the factories.

When the war started, ninety percent of goods made in the U.S. were made in the North. After the war started, factories quickly started to make bullets, guns, uniforms, and other supplies that an army needed.

The North had an easier time getting supplies to its army. The railroads in the North were much better. Seventy percent of all the rail lines were there. This made it much easier to move people and supplies where they were needed.

When the war first started, some people were worried about Abraham Lincoln. They wondered what kind of leader he would be. He did not have lot of experience in anything that had to do with the military. In the end, Lincoln turned out to be very good. He was a strong leader for the North.

The North had several big weaknesses. The men in the Union army would be invading a part of the country that they were not familiar with. They would not be defending their own homes like the army in the South.

It would be harder to supply the Union troops as they got farther and farther away from home. This long distance would make it easier for Southern troops to stop supplies from getting to the Union army.

Both sides were sure that their strengths and advantages would help them quickly end the war. The first battle, the Battle of Bull Run, showed that this would not be true. The war would be long and deadly for many of the soldiers fighting in it.



Name: edHelper

North vs. South: Strengths and Weaknesses

Questions

1. Which side had more factories?

A. the SouthB. the North

2. Whom did Lincoln ask to lead the Union army?

A. Robert E. LeeB. Jefferson DavisC. Abraham Lincoln

3. Why was the railroad a disadvantage for the South?

A. Rail lines were often not connected.B. The South had a lot of rail lines.C. It was easy to get from place to place.

4. Why would it be harder to supply Union troops as they moved farther south?

5. Which side had more factories to make supplies for its army?

A. the NorthB. the South

6. Name two advantages that the North had.

A toy car can go 3 mph. How long would it take to go 4 miles?

A rectangle is 53 cm on one side and 10 cm on another side. What is the perimeter?

40 divided by 5 equals

Write the missing family fact.144 ÷ 16 = 99 x 16 = 14416 x 9 = 144

(25) , (5) , (1) , 15,

125, , 1

625, 13125

What 3 coins add up to 21 cents?



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This puzzle has a large number in the middle, which is the sum of the four numbers that surround it.

Sample:12 34is the sum

2 58 -2 18

4 34

7 12

9 14is the sum

7 12

2 58

1 14

7 1724is the sum

1 14

-3 23

2 58

2 58

+ -2 18

+ 4 34

+ 7 12 7 1

2 + 1 1

4 + -3 2

3 + 2 5

8

Fill in the missing numbers. How? The sum of the four surrounding numbers is in the center of each square.

Exactly one of the four numbers has to be one of these numbers: -2 18

, -1 45

, or -3 23

.

The other three numbers have to all be DIFFERENT and must be from these: 7 12

, 4 34

, 2 58

,

or 1 14

.

11 710-1 45 4 34

7 12

1 14

-2 18 612

2 58

11 384 34

7 12

6 3340 11 710 9 567 12 12

34

11 710

7 12

6 3340

4 34

-3 23




Name:edHelper

Fill in the missing numbers. How? The sum of the four surrounding numbers is in the center of each square.

Exactly one of the four numbers has to be one of these numbers: -14, -1 1

3, or -3 1

5.

The other three numbers have to all be DIFFERENT and must be from these: 9 12

, 5 34

, 4 12

,

or 7 12

.

19 11207 12 9 12

-3 15

5 34

22 127 12

5 34

21 512

-1 13

21 14-14

4 12

14 1120 21 149 12 19

12 22 12

16 11205 34 21 14 17 12 21 512

-1 13

21 512 18 512 19 1120

22 12 19 12




Name: edHelper

Aachoo!By Erin Horner

It started as a tickle. Try as I might I could not get the wriggly feeling in my nose to go away. I tried to stop it. I tried to be quiet. But before I knew it a huge "A-a-a-achoo!" escaped. I sneezed. Why do we sneeze? Sneezing is a reflex. It is our body's way of helping to protect our nose and our lungs. Sometimes little pieces of dirt or dust sneak up into our nose. When the nerves in your nose notice these tiny intruders they send your brain a message. Your brain then sends a message to your spinal cord and then on to the muscles in your belly and diaphragm. Then your midsection muscles and lungs team up to rid your nose of these pesky particles. When your muscles contract, a huge blast of air comes shooting out of your nose. This is a sneeze. All of this air helps to blow the dirt, dust, or irritants out. When you sneeze, it is polite to say "Excuse me" to those around you. But maybe we should also say "thank you" to our body for ridding our nose of those tricky trespassers.

Aachoo!

Questions

1. Why do we sneeze?

2. The author probably wrote this passage to ______.

A. Persuade you to avoid dirty, dusty locationsB. Inform you about why people sneezeC. Demonstrate how to stop a sneeze once it startsD. Describe the polite way to sneeze

3. What does the word particle mean in this passage?

A. a very small portion, piece, fragment or amountB. a clause or articleC. a part of speechD. something used in a Catholic church service

4. What can the reader conclude after reading this passage?

A. It is very important to use good hygiene and good manners after sneezing.B. No one knows why we sneeze.C. Sneezing is not very beneficial.D. Sneezing helps to keep us healthy.

word root nomy can mean arrangement taxonomy, economy



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0 0 5 5 3 0 1 5 9 5 1 4 7 9 8 64 2 7 3

Use the pieces above to help you fill in the runaway math puzzle.


31

Write the reciprocal.16


236

1 + 7 x 11 - 12 How many minutes is it from 7:00 a.m. to 11:40 a.m.?

How much time is it from 6:00 a.m. to 10:45 a.m.?

+ + =+ +

++ =

=- = -




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Get a fidget spinner! Spin it. I needed to spin time(s) to finish.

Not Exact Estimate - With a Good Guess

44 ÷ 6 7 36 ÷ 10 4 26 ÷ 5

57 ÷ 9 91 ÷ 11 29 ÷ 6

117 ÷ 12 43 ÷ 9 44 ÷ 5

30 ÷ 4 29 ÷ 3 49 ÷ 8

22 ÷ 7 65 ÷ 11 63 ÷ 8

25 ÷ 7 37 ÷ 4 45 ÷ 10

20 ÷ 3 50 ÷ 6 35 ÷ 6

53 ÷ 10 22 ÷ 5 102 ÷ 11

22 ÷ 3 106 ÷ 12 33 ÷ 9

51 ÷ 8 25 ÷ 4 67 ÷ 9

10 ÷ 3 29 ÷ 7 68 ÷ 8

29 ÷ 5 37 ÷ 4 104 ÷ 11

46 ÷ 10 42 ÷ 12 66 ÷ 8

41 ÷ 7 43 ÷ 6 61 ÷ 10




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