Academic Year Second Term. Science Revision sheets

Transcription

1 Academic Year Second Term Science Revision sheets Name: Date: Grade:3/ Q1 : Choose the letter of the choice that best answer the questions 1. Which of these is what a plant does that makes more plants like itself? A. germinate B. grow C. reproduce D. spread 2. Some trees make this kind of plant part. Which statement tells what this plant part does? A. It takes in light. B. It takes in water. C. It makes the seeds. D. It makes the flowers 1 P a g e

2 3. The male parts of a plant make pollen. Which part of a plant has the male parts that make the pollen? A. Flower B. fruits C. leaves D. stems 4. Which of these is a plant reproductive part that can grow into a new plant? A. frond B. fruit C. pollen D. spore 5. Which part of a plant helps to spread seeds when it is eaten by an animal? A. flower B. fruit C. leaf D. stem 6. Which of these is true about the life cycle of all animals? A. They have a mate. B. They produce young. C. They hatch from eggs. 2 P a g e

3 D. They have two parents. 7. Which part of this tadpole lets You know that the tadpole is becoming a frog? A. its tail B. its legs C. its eyes D. its mouth 8. Which of these is the name of the young animal that hatches from a ladybug s egg? A. a foal B. a larva C. a nymph D. a tadpole 9. In a food chain, there are producers, consumers, and decomposers. What is the role of a producer in a food chain? A. to eat plants B. to make food C. to eat other living things D. to break down dead things 10. A bird kills and eats an insect for food and energy. Which best describes the bird? A. It is a predator. B. It is a producer. C. It is a herbivore. D. It performs photosynthesis. 3 P a g e

4 11. A food chain shows how living things depend on other living things for energy. Which of the following correctly shows how energy moves through a food chain? A. grass oak tree human B. grass chicken human C. human chicken grass D. chicken grass human 12. This picture shows a food chain in the ocean. How does the small fish get energy? A. by eating algae B. by eating the shark C. by eating a consumer D. by eating the sea lion 13. Some living things, such as rabbits, eat only plants. What is the name for living things that eat only plants? A. carnivores B. consumers C. herbivores D. Producers 14. This picture shows a food chain that could be found in a prairie. Which animal in this food chain is a herbivore? A. the grass B. the grasshopper C. the mouse 4 P a g e

5 D. the owl 15. A food chain, like this one, shows how energy moves between living things. Which living thing best completes the partial food chain above? A. a bird B. grass C. the sun D. a predator 16. Look at this picture. What most likely caused this ecosystem to change? A. drought B. erosion C. fire D. flood 17. What causes a drought? A. moving water B. no rainfall C. too much rainfall D. warm weather 18. Which is an example of how people can help an environment? A. A pond is drained. B. Trees are planted in a forest. C. Trash is dumped in the ocean. D. Houses are built on a grassland. 5 P a g e

6 19. What part do humans play in food chains? A. producers B. consumers C. humans are NOT part of food chains 20. What do you always find at the start of a food chain or web? A. an insect B. a bird of prey C. a green plant Q2 : Match each Term from column (A) with its definition in column (B) A B 1 Life cycle pollen moves from male part of plant to female plant part. 2 Pollination major change in the body form of an animal during its life cycle. 3 Consumer path of food that flows from one organism to another. 4 Food chain the stages an organisms, or living things goes through during its life. 5 Metamorphosis living thing that eats other living things. Q3: Write (T) in the bracket ( ) for the True sentences and (F) for the False sentences. 1. A producer is a living thing that makes its own food ( ) 2. When seeds are released from plants, they are carried to new areas. ( ) 3. Spores are seeds. ( ) 4. All living things undergo metamorphosis. ( ) 5. The larva of the ladybug looks different from the adult ( ) 6 P a g e

7 Q4: Label the predator and the pray in each pair of animals shark Mouse fish snake Q5: Draw and label the stages of frog life cycle 7 P a g e

8 Q6: Draw the plant's life cycle and then tell why does the cycle stop if one of these steps is removed. 8 P a g e

9 Q7: Use the following diagram to answer the following questions A. Circle the producer in the following diagram and underline the consumer. B. Using the diagram give one example for the following Herbivore : Carnivore : Omnivore : prey / predator : 9 P a g e