Winter Break Science Homework

Ms. Benjamin/Ms. Wolff

Homeroom Group 218A

Need help?

http://www.mrswolff.notlong.com

Observations vs Characteristics.

For each picture below, make two observations and then give two characteristics.

Remember, an observation is something that we observe (touch, taste, see, smell, hear) and a characteristic is a description of a person, place, or thing.

Observations Characteristics1.

2.

1.

2.

Observations Characteristics1.

2.

1.

2.

Observations Characteristics1.

2.

1.

2.

Qualitative vs Quantitative Data

1. What is data?

Identify the following statements: write quantitative if it is quantitative data and if it is qualitative data write qualitative.

_______________ 1. There are 5 eggs in the nest.

_______________ 2. The flowers are a pretty red color.

_______________ 3. The house is 5 miles from the school.

_______________ 4. The monster has many eyes.

_______________ 5. The girl got a 50% on her test.

Reading a Data Table

Answer the questions on the following data table:

1. How long did it take the solution to change color when the temperature was 30º?

___________

2. What was the temperature of the solution that took 27s to change? _______

3. What is the difference in time it took to change color between the 10 º and the 25

º solutions?

4. What is missing from this table? __________ Fix it!

Organizing a Data Table

Organize the data below into a table, from smallest to largest, using trials as independent variable.

A student studied the relationship between the current and voltage in a direct current circuit. She did 5 trials and found the following information:

Draw your table here:

Bonus: PREDICT what the voltage and current would be if the student did trial 6 (use the pattern!)

Trial 1: voltage 5 V, current 1 amp Trial 2: voltage 10 V, current 2 amp

Trial 3: voltage 15 V, current 3 amp Trial 4: voltage 20 V, current 4 amp

Trial 5: voltage 25 V, current 5 amp

Reading a Graph

Answer the questions on the following graph:

1. What is the name of the bar graph?_________________________

2. Every year displayed on the bar graph shows that more people owned_____.

3. In 2002, how many people owned dogs? _______________

4. In what year did 100 people own cats? _________________

5. How many more people owned cats than dogs in 2005?

______________________

Answer the questions on the following graph:

1. What is the title of the line graph? ___________________________

2. What is the difference between rainfall in Portland and in Seattle in Week 3?

________________________________

3. How many centimeters of rain were there in Portland in week 5? ____________

4. During which week was there15cm of rain in Seattle? ______

Levels of Organization

Label the following levels of organization. Use the terms:

Individual, ecosystem, population, community

Other Relationships in Ecology

Label which one is a food chain and which one is a food web:

_________________________ ____________________

What is the difference between food chains and food webs?

Biomes

What is the difference between an ecosystem and a biome?

What are the different LAND biomes that we identified? Give one characteristic of each.

Name of Biome Characteristic

Vocabulary Review

Matching: place the letter from the definition in column B on the line in front of the word it defines.

Vocabulary Word Definition_____ observation

_____ characteristics

_____ graph

_____ x axis

_____ y axis

_____ title

a. The horizontal number line on a graphb. A phrase that describes data in a graphc. A description of a person, place, or

thingd. What you see, touch, hear, smell, or

taste to describe somethinge. The vertical number line on a graphf. A picture representation of number

data

Vocabulary Word Definition_____ independent variable

_____ dependent variable

_____ scale

_____ maximum

_____ minimum

_____ data table

a. Also called a chart, a way to organize data so it is easy to read

b. Lowest pointc. The highest pointd. The variable that changes based on the

independent variablee. The numbers or words on the x and y

axis that show what the data meansf. The variable that a scientist will change

Vocabulary Word Definition_____ food chain

_____ food web

_____ weather

_____ climate

_____ precipitation

_____ ecosystem

a. Rain, snow, sleet, or hailb. One series of organisms showing

what eats whatc. A diagram of many interconnected

organisms showing what eats what.d. The current conditions of the

atmospheree. All of the biotic and abiotic things in

an environmentf. Weather in an area over a long

period of time

Vocabulary Word Definition_____ environment

_____ organism

_____ population

_____ community

_____ species

_____ habitat

a. Where the animal livesb. Group of the same organismsc. The same kind of organism that can

reproduce (have babies)d. Living thinge. Your immediate surroundingsf. All living things in an ecosystem

Vocabulary Word Definition_____ endangered

_____ threatened

_____ extinct

_____ biome

_____ biotic

_____ abiotic

a. A group of organisms that is low enough in number that scientists to protect them from becoming endangered

b. Non-living thingsc. Environments that share common

characteristicsd. When a species dies out and there are no

more left in the worlde. Living thingsf. A group of organisms that is in danger of

becoming extinct, very few left in the world