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Science Department Quarter (1) Revision Sheet Grade 4

Multiple ChoicesIdentify the choice that best completes the statement or answers the question.

___C_ 1. Which adaptation of this mountain lion enables it to catch the deer?

A. thick furB. a long tailC. strong legsD. small ears

___C_ 2. The animal shown below has webbed feet and a paddle-like tail. Where does this animal most likely live?

A. in a tree B. in the desertC. near a streamD. on the polar ice

__A__ 3. Which adaptation would you expect in animals that live in caves?

A. very good hearingB. poor hearingC. very good eyesightD. brightly colored fur

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_B___ 4. Which adaptation will help the rabbit detect the wolf so that it can escape?

A. thick furB. large earsC. cotton tailD. sharp teeth

_B___ 5. What adaptation keeps the plant below from losing water?

A. long, deep rootsB. flat, waxy leavesC. long, shallow rootsD. bright, colorful flowers

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__C__ 6. What is the main source of energy for the food web below?

A. hawkB. rabbitC. plantsD. toad

__C__ 7. This diagram shows a food web. Which shows one food chain for the hawk?

A. hawk grass prairie dogB. rabbit coyote grassC. grass rabbit hawk D. grass snake hawk

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__A__ 8. Which type of consumer is the hawk?

A. a carnivoreB. a decomposerC. a herbivoreD. a omnivore

__A__ 9. In a food web, energy is transferred between organisms. When an organism dies, what happens to the energy stored in its body?

A. Fungi and bacteria use it for food.B. Plants use it to make their own food. C. Animals use it to grow strong.D. The organism rots and its energy is lost.

__D__ 10. In a grassland food chain, grasshoppers eat grass and meerkats eat grasshoppers. What is the main role of the meerkat in this food chain?

A. It provides energy to the grass.B. It obtains energy from the grass.C. It provides energy to grasshoppers.D. It obtains energy from grasshoppers.

__C__ 11. Mrs. Anticoli’s students are testing conditions for germinating bean seeds. Which is the best way for them to study how the amount of water affects the germination of the bean seeds?

A. give the seeds large amounts of water and watch to see if any of them will germinate

B. give the seeds no water and wait to see if any of the seeds will germinateC. give the seeds different amounts of water and record when each seed germinatesD. give each seed the same amount of water and watch to see which one germinates

first

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__D__ 12. Marshall planted two bean seeds in the same kind of soil. He kept them at equal temperatures and gave them the same amount of water, but exposed them to different amounts of sunlight. What is Marshall trying to demonstrate?

A. that plants will grow when wateredB. that soil affects plant growth rateC. that temperature affects plant growth rateD. that sunlight affects plant growth rate

__B__ 13. The magnolia is a flowering plant. The pine tree is a nonflowering plant. Both trees have similar life cycles. What is the order of events in the life cycles of both plants?

A. seed, pollination, seed dispersal, fertilizationB. pollination, fertilization, seed, seed dispersalC. fertilization, pollination, seed, seed dispersalD. pollination, seed, seed dispersal, fertilization

__C__ 14. Maya is observing the growth of different bean seedlings. She places each seed on a wet paper towel and seals it in a plastic bag. She puts all the seeds in a warm place to germinate. After they germinate, she places a seed in the refrigerator, one in the middle of the room, and one on top of a hot radiator. Which factor is Maya investigating?

A. the effect of water on plant growthB. the effect of lack of soil on plant growthC. the effect of temperature on plant growth D. the effect of lack of oxygen on plant growth

__C__ 15. Lin built a prototype for a new toy race car. During testing, the car would only move a short distance before coming to a sudden stop. What should Lin do next?

A. build and test a new toy carB. build a paper plane insteadC. use her observations to redesign the carD. redesign the race car's track and make it shorter

__B__ 16. Tai is designing a capsule to prevent an egg from breaking when dropped from a distance of 2 meters. He has made sketches of his design. What is the next step that Tai should take in the process?

A. test the modelB. construct the design capsuleC. evaluate the design for revisionD. collect and analyze the test results

_D___ 17. Nina plays catcher on her softball team. She wants to design a mitt that will better absorb the force of the ball. She and her teammate Sasha are just beginning the design process. What should they do first?

A. build a prototypeB. test their prototypeC. keep careful recordsD. brainstorm possible solutions

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__C__ 18. Elijah is preparing for a test on animal life cycles. He needs to remember how some animals go through metamorphosis. Which animal would be an example of an animal that goes through metamorphosis?

A. coyoteB. sea turtleC. grasshopperD. nurse shark

__D__ 19. A female manatee usually has only one pup at a time. Which word best describes this part of the life cycle?

A. deathB. growthC. maturityD. reproduction

___B_ 20. A beach mouse and her pups are in a burrow. The pups are small and are still getting milk from their mother. What stage in the life cycle of the pups is this?

A. birthB. growthC. maturityD. reproduction

__B__ 21. An animal’s life cycle includes the stages of birth, growth, maturity, reproduction, and death. Which of the following is an example of maturity?

A. A hognose snake hatches from an egg.B. A bald eagle grows to its full adult size.C. A crocodile lays a clutch of eggs near the banks of a swamp.D. A white-tailed deer’s heart stops beating after living many years.

_B___ 22. Animals can be born and raised in many ways. Some animals lay eggs, others give birth to live young, and others are born and raised in pouches. Which animal gives birth to live young?

A. antB. chipmunkC. bullfrogD. clownfish

__C__ 23. While hiking, Lori finds a quail’s nest. She notices that there are eggs in the nest. What is likely to happen next in the life cycle of the quail eggs?

A. flyingB. growingC. hatchingD. reproducing

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__C__ 24. The bald cypress tree produces seeds that are protected within cones. This tree is found in Florida swamps, where heavy rains create floods. The flood waters spread the cones throughout the swamps. What role do the flood waters play in the life cycle of the bald cypress?

A. pollinationB. fertilizationC. seed dispersalD. removal of dead leaves

__C__ 25. An empress tree is a flowering plant. This tree’s flowers have blue and violet markings. What is the main role of the colored markings on the flowers?

A. to protect the plant from the sunB. to produce pollen for reproductionC. to attract insects to carry pollen D. to disperse seeds to other parts of the local environment

__A__ 26. The table lists some features of the green briar vine.

Green Briar Vine PlantFeatureDescriptionflowersmall, green-whitegrowth patterntall, twiningleafpointed, shinystemwoody, with thorns

The life cycle of a green briar vine includes sexual reproduction. Which feature of the plant is used for sexual reproduction?

A. flowerB. leafC. growth pattern D. stem

__C__ 27. Millions of honeybees have vanished from their hives throughout the country recently. No one is sure why the bees have disappeared. However, many people are concerned. Why are people concerned about what is happening to the honeybees?

A. Bees help with seed dispersal.B. Bees help protect seeds in nonflowering plants.C. Bees pollinate many flowering plants.D. Bees protect seeds until they start to germinate into seedlings.

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_A___ 28. Food chains have three types of consumers. Which statement describes an herbivore?

A. eats only plantsB. eats only animalsC. makes its own foodD. eats plants and animals

__A__ 29. In a forest, deer eat plants. Snakes eat small animals and birds. Raccoons eat mice, insects, fruits, and plants. What is the raccoon?

A. carnivoreB. herbivoreC. omnivoreD. producer

__B__ 30. In a grassland food chain, grasshoppers eat grass. Then meerkats eat grasshoppers. What is the main role of the grasshopper in this food chain?

A. make a new habitatB. be a source of energyC. clear grass for space to liveD. lay eggs to make more grasshoppers

__A__ 31. Which statement best describes this picture?

A. A population of elephants lives in the savanna. B. A community of elephants lives in the savanna.C. Elephants and grasses make up a savanna population.D. Trees and grasses are communities in a savanna ecosystem.

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__C__ 32. Earthworms live in soil. They eat rotting leaves and the remains of dead insects. Wastes from earthworms add nutrients to the soil. Earthworms are food for some birds. Which statement best describes the niche of an earthworm?

A. Earthworms live in soil.B. Soil contains nutrients for plants.C. Earthworms use remains of insects found in soil as food.D. Rotting plants and remains of insects can be found in soil.

__B__ 33. Which identifies the nonliving parts important in all ecosystems?

A. air, heat, rocks, water, and soilB. air, water, soil, sunlight, and temperature C. salt, temperature, sunlight, heat, and rocksD. water, soil, sunlight, rocks, and shade

__C__ 34. Which statement is true about a community?

A. A community is all the same species living in different ecosystems.B. A community is made up of one kind of population living in one place.C. A community is made up of different populations that depend on one another. D. A community is made up of different populations that do not interact with one

another.

_A___ 35. This picture shows the life cycle of a frog. How does a frog’s niche change when it is fully grown?

A. The frog uses legs to move and live on land. B. The frog uses a tail to move and live on land.C. The frog uses legs to swim and live in water.D. The frog uses a tail to swim and live in water.

__A__ 36. Ecosystems have producers, consumers, and decomposers. Why are producers important in an ecosystem?

A. They produce food for consumers.B. They break down remains of dead plants.C. They produce food for other producers.D. They consume food for other consumers.

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__B__ 37. Which statement about nonvascular plants is correct?

A. They have roots that take in water.B. They have roots that anchor the plant in the soil.C. They make up the majority of all plants.D. They do not use photosynthesis to make food.

_A___ 38. Which of the following vegetables is a root?

A.

B.

C.

D.

__D__ 39. Which part of a vascular plant produces food through photosynthesis?

A. flowerB. rootC. veinsD. leaves

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__C__ 40. The picture shows the steps that happen during photosynthesis.

What is happening at Step 4 in the picture?

A. Sugar is entering the leaf, and water vapor is exiting.B. Carbon dioxide is entering the leaf, and water vapor and oxygen are exiting.C. Carbon dioxide and chlorophyll are entering the leaf, and oxygen is exiting.D. Water vapor and chlorophyll are entering the leaf, and carbon dioxide is exiting.

__B__ 41. Which part of a vascular plant anchors the plant in the ground?

A. stemB. rootC. veinsD. leaves

_A___ 42. Len has two green plants. He keeps one on a sunny windowsill. He keeps the other one in a shady part of the same room. He gives both plants the same amount of water. What will happen to the two plants?

A. The plant in the sun will grow faster.B. The plant in the sun will die.C. The plant in the shade will grow faster.D. The plant in the shade will die.

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__C__ 43. Josie likes to visit the park in her neighborhood to watch hummingbirds. She often sees them find food from deep inside flowers.

Which feature of a hummingbird is most adapted to what the bird eats?

A. the size of its wingsB. the length of its legsC. the shape of its beakD. the color of its feathers

__A__ 44. The picture below shows flowers with an unusual shape.

Which beak shape would best allow a bird to reach the nectar inside the flower?

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A. long and thinB. long and thickC. short and thinD. short and thick

Complete the following statements:

1. A prototype Is an original or test model on which a real product is based. 2. The process by which plants make their own food photosynthesis 3. Plants with tubes that move water, minerals and sugar are called vascular plant4. The substance in leaves that capture sunlight is called chlorophyll 5. Mosses are examples of non vascular plants6. When a sperm joins an egg, Fertilization process takes place.7. When the seed sprouts, it germinates8. The underside of the fern leaves has spores9. From the pollinators bee and butterfly10. Animals that have a larva stage and a pupa stage goes under complete metamorphosis.11. After the human babies are born, they develop into Toddlers12. The type of behavior that the animal do without learning instinct 13. The woodpecker would be the best for picking insects out of wood 14. Toucan bird has big and strong beak to eat tropical fruits 15. A rain forest is an ecosystem16. A lion is a carnivore17. Bacteria are decomposers18. Sunlight + water + carbon dioxide Sugar + oxygen19. Group of food chains is Food web20. Scavengers are decomposers

Arrange the following food chains:

1- Grass – rabbit – fox 2- Plants- Rabbit–Snake – Lion 3- Plankton - Small Fish –Lobster

Choose:

1- An ostrich has long, strong leg ( physical adaptation – behavioral adaptation)2- A male penguins huddle together to stay worm ( physical adaptation – behavioral adaptation)3- A monkey is ( producer – decomposer – consumer)4- A rabbit is (carnivore consumer – herbivore consumer )5- When a sperm joins an egg ( Fertilization – Pollination – Germination)6- From pollinators ( Snail – Butterfly – plant )7- Some seeds are covered in little hooks are called ( Burs – fruit – cone)8- The name of the male part in the flower is ( pistil – petal – stamen )

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9- Butterflies go through ( Complete metamorphosis- incomplete metamorphosis)10- Hummingbird beak would be the best for ( picking insects- flower nectar )

Short answers:Compare between vascular and non vascular plants.

-Vascular plants have roots, stems and leaves – they have a tube like system that moves water, minerals, and sugar.

-Non vascular plants don't have roots, stems and leaves – they don't have a tube like system that moves water, minerals, and sugar. List three ways a seed forming plant can be pollinated

1. Animals2. Wind3. Water

Compare between pollination and fertilization

During pollination: pollen lands on a flower's pistil, Sperm from the pollen move into the pistil where the eggs are.Fertilization: happens when a sperm joins an egg .

Compare between complete metamorphosis and incomplete Metamorphosis

Complete metamorphosis: has 4 stages includes larva and pupa stages for example: ButterflyIncomplete Metamorphosis: has 3 stages includes nymph stage example: grasshopper Monkey lives in the forest, what physical adaptations does it have that

help it to survive in this environment? It has strong long arms and long tail for climbing the mountains.

A penguin lives in arctic polar environment, what physical adaptations does it have that help it to survive in this environment?

It has thick fur and layer of fat .

Write the four non- livings things in the ecosystem

Water – air – soil – weather

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