Futures International school Grade 3- First quarter science revision First Quarter exam will include the following:

Unit 1 How Scientists WorkLesson 1: How do scientists investigate questions?Lesson 2: How do scientists use tools?

Unit 3 Plants and animalsLesson 1: what are some plants’ life cycles?Lesson 2: what are some animals’ life cycles?Lesson 3: how do living things change?Lesson 4: What are structural adaptations?Lesson 5: What are behavioral adaptations?

Unit 4 Ecosystems and interactionsLesson 1: what are Ecosystems?Lesson 2: what is a food chain?

Choose the correct answer:

1-Which tool magnifies objects that are too tiny to be seen with the eye alone?

a microscope a pan balance

a ruler a stopwatch

2-Which tool do you see in the picture?

a microscope a pan balance

a thermometer a stopwatch

3-Which tool is used to measure mass?

4-Which tool is used to measure volume?

a- b-

c- d-

5-A fruit holds the seeds of a flowering plant. Which of these is another structure that holds seeds?

cone pollen

insect spore

6-Which of these is what a plant does that makes more plants like itself?

a-germinate b-grow

c-reproduce d-spread

7-Which of these best tells what a life cycle of a living thing is?

A-the structures that it makes

B-the steps in its reproduction

C-the stages it goes through in its life

D-the parts of it that form as it grows

8-What is the name for the major changes in an animal’s appearance during its life cycle?

A-birth B-differences

C-Metamorphosis D-reproduce

9-A fruit holds the seeds of a flowering plant. Which of these is another structure that holds seeds?

A-cone B-pollen

C-insect D-spore10-Which sequence shows the life cycle of some insects?A adult-pupa -larva -eggB egg-pupa -larva -adultC larva -pupa -egg -adultD egg-larva -pupa -adult

11 -What is the first stage in a plant’s life cycle?a. flowering b. Fruitingc. Seedling d. Germination

12-which part of the plant absorbs water and nutrients from the soil ?

a-roots b. stem c. leaf d. flower

13-The difference between a butterfly and a caterpillarA. a caterpillar has wings. B.a butterfly makes a cocoon.C. a caterpillar eats and flies. D. a butterfly has wings.

14. The change for a tadpole to become a frog is called a

A. life cycle. B. metamorphosis.

C. cell. D. living things.

15-Which of the following best describes the living and non-living parts of an area:A. A niche B. communityC. An ecosystem D.biome

16-A group made of the same kind of individuals living in the same ecosystemA. A population B. communityC. An ecosystem D.biome

17-All the populations that live in the same placeA. A population B. communityC. An ecosystem D.biome

18-Which of these is a living thing in an ecosystem?A water B airC sunlight D grass

19 -A place where the animal lives is its A. A population B. communityC. An ecosystem D.habitat

20-which is the term for food chains that overlap?A. food chain B. Food web

C. energy pyramid D. ecosystem

21 -What is the major source of energy for food chains?A water B airC sunlight D grass

22-This picture represents

A. food chain B. Food web C. energy pyramid D. ecosystem

-Complete the following: (photosynthesis-stem-root –leaf

1-The part of a plant that grows underground and takes water

and nutrients from the soil is the.

2-The process that plants use to make food and oxygen.

3-The part of a plant that makes food .

4-The part of a plant that holds the plant up and moves water and nutrients to other parts .

Complete the following diagram about photosynthesis process:

( water –carbon dioxide-food-sunlight-oxygen )

Complete :

(Population-habitat-ecosystem- community-mimicry-adaptation-camouflage)

1- The place where a population lives in an ecosystem .

2. Any trait that helps a plant or animal survive .

3-A group of organisms of the sa m e kind that live in the same place ,

4- The imitating of the look of another animal .

5- The colors, patterns, and shapes that disguise an animal and help it hide .

6- All the populations of organisms that live in an ecosystem at the same time

7- The living and nonliving things that interact in an environment .

Put the following events in the food chain in the correct sequence:

A cat feeds on the bird that fed on the grasshopper that fed on grass

A grasshopper fed on grass

A bird feeds on the grasshopper that fed on grass

Complete the following:

)Food chain-food web-omnivore-predator-prey-producer-carnivore-consumer-decomposer-energy pyramid(

1. An animal that eats other animals is a)n( .

2. A diagram that shows how energy gets used in a food chain is called

a)n( .

3. An animal that hunts another animal for food is a)n( . .

4. A living thing that makes its own food is a)n( . .

5. A living thing that breaks down dead organisms for food is

a)n( .

6. A living thing that gets its energy by eating other living things as food

is a)n( .

7. The path of food from one living thing to another is called

a)n( .

8. A consumer that eats both plants and animals is

a)n( .

9. An animal that is hunted by other animals for food is called( .

.10. Food chains that overlap is called a)n( . .

1-Match the term to the part of the plant it describes.

1-roots

2-stem

3-leaves

4-flower

-Put the plant life cycle in the correct order:

Label the life cycle of the butterfly and answer the question:

Arrange the following organisms to make a food chain:(6 pts)

Grass hopper - Hawk - Grass- Snake frog

Rabbit Fox Grass