Grade 3-B 2nd Academic Challenge SCIENCE

1. Our planet is mostly made up of water, but it is unfortunate that a lot of our bodies of water are getting more and more polluted.

• A. True

• B. False

2. Huge bodies of water get polluted by oil spills from ships and by garbage left by travellers or fishermen. This greatly endangers the creatures living in the water, as well as those around it.

• A. True

• B. False

3. People have developed the nasty habit of throwing their household wastes into the ________.

• A. air

• B. land

• C. mountain

• D. river

4. When visiting the beach, make sure you do not leave any litter along the shoreline.

• A. True

• B. False

5. Throw your trash along the river.

• A. True

• B. False

6. We can do" tree planting" in Ho Chi Minh City.

• A. True

• B. False

7. When Lexie was adding ice to her halohalo, the milk started to overflow. Which of the following explains why this happened?

• A. Both milk and ice have mass.

• B. Both milk and ice occupy space.

• C. Both milk and ice follow the shape of the container.

• D. Both ice and milk are cold.

8. What would happen if more and more air is added to the ball?

• A. Nothing, because air can be compressed.

• B. The ball might explode if there is too much air because air also occupies space.

• C. The ball will expand.

• D. The ball will become bigger.

9. What is a living thing?

• A. It has a color

• B. It has water.

• C. It has life.

• D. It has shape.

10. The human body is basically made up of the head, neck, shoulders, arms, legs and feet. Each part has a role in helping our whole body function properly.

• A. True

• B. False