40-Question IGCSE Grade 2 Science Worksheet for 9-Year-Olds — Environment, Air & Wind

Instructions

Read each question carefully. Answer all the questions to the best of your ability. For multiple-choice questions, circle the letter of the best answer. For other questions, write your answer on the line provided.

Section 1: Healthy and Unhealthy Environments

Part A: Multiple Choice
Circle the best answer for each question.

1. Which of these is a sign of a healthy environment?
1. Lots of trash on the ground
2. Clean water in rivers and lakes
3. Black smoke coming from factories


2. Where would you most likely find happy and healthy animals?
1. In a polluted river
2. In a clean forest with many trees
3. Next to a busy, noisy highway


3. An unhealthy environment often has...
1. Fresh, clean air
2. Many different kinds of plants
3. Dirty water and litter


4. What is a good way to help make an environment healthy?
1. Planting new trees
2. Throwing wrappers on the ground
3. Wasting electricity


5. Which word best describes a healthy environment where plants and animals live well?
1. Damaged
2. Thriving
3. Empty

Part B: True or False
Write 'True' or 'False' on the line next to each statement.

6. All environments on Earth are perfectly healthy. _________
7. Clean air is very important for people and animals to breathe. _________
8. Dropping litter on the street helps make the environment healthy. _________
9. Plants and animals can get sick in a polluted environment. _________
10. A healthy environment has a good balance of clean air, water, and soil. _________

Section 2: Pollution and Prevention

Part A: Fill in the Blanks
Choose the correct word from the box to complete each sentence.

11. When harmful things are added to the land, water, or air, it is called _______________.
12. Smoke from cars and factories can cause _______________ pollution.
13. To use less of something, like water or electricity, is to _______________ it.
14. When you find a new way to use an old item, like using a jar as a pencil pot, you _______________ it.
15. The process of turning old plastic bottles into new things is called _______________.

Part B: Multiple Choice
Circle the best answer for each question.

16. Which of these is an example of land pollution?
1. Loud noises from construction
2. An oil spill in the ocean
3. A pile of garbage left in a park


17. Chemicals from a factory leaking into a river is an example of...
1. Air pollution
2. Water pollution
3. Noise pollution


18. Which action helps reduce air pollution?
1. Burning trash in the garden
2. Riding a bicycle instead of using a car
3. Leaving all the lights on at home


19. The "Three R's" that help protect the environment are:
1. Run, Rest, Read
2. Red, Right, Round
3. Reduce, Reuse, Recycle


20. What is the best way to dispose of an old plastic bottle?
1. Throw it in the regular trash bin
2. Throw it in the river
3. Put it in a special bin for recycling

Part C: Short Answer
Write your answer on the line provided.

21. Name one thing that causes air pollution.
    __________________________________________________________________


22. Name one way you can help reduce waste at school.
    __________________________________________________________________


23. What does it mean to "reuse" something? Give one example.
    __________________________________________________________________


24. Why is it important to keep our oceans clean?
    __________________________________________________________________


25. Name one type of material that can often be recycled.
    __________________________________________________________________

Section 3: Air and Wind

Part A: True or False
Write 'True' or 'False' on the line next to each statement.

26. You can see the air all around you. _________
27. Air is a mixture of different gases, including oxygen. _________
28. Plants and animals do not need air to live. _________
29. If you blow up a balloon, you prove that air takes up space. _________
30. Moving air is called wind. _________

Part B: Multiple Choice
Circle the best answer for each question.

31. What is wind?
1. Air that is standing still
2. Water falling from the sky
3. Air that is moving


32. A very gentle, light wind is called a...
1. Breeze
2. Hurricane
3. Gale


33. The force of the wind can be used to...
1. Make rocks grow
2. Power a sailboat across the water
3. Make the sun shine brighter


34. What tool is used to tell us the direction the wind is blowing from?
1. A thermometer
2. A wind vane
3. A barometer


35. A very strong and powerful wind can...
1. Make flowers grow faster
2. Clean up pollution
3. Damage buildings and trees

Part C: Short Answer
Write your answer on the line provided.

36. Name one way you can feel air, even though you cannot see it.
    __________________________________________________________________


37. Give one example of how wind can be helpful to people.
    __________________________________________________________________


38. Give one example of how very strong wind can be dangerous.
    __________________________________________________________________


39. What happens to the leaves on a tree on a very windy day?
    __________________________________________________________________


40. Why does a kite need wind to fly?
    __________________________________________________________________

Answer Key

Section 1: Healthy and Unhealthy Environments

1. B. Clean water in rivers and lakes
2. B. In a clean forest with many trees
3. C. Dirty water and litter
4. A. Planting new trees
5. B. Thriving
6. False
7. True
8. False
9. True
10. True

Section 2: Pollution and Prevention

11. pollution
12. air
13. reduce
14. reuse
15. recycling
16. C. A pile of garbage left in a park
17. B. Water pollution
18. B. Riding a bicycle instead of using a car
19. C. Reduce, Reuse, Recycle
20. C. Put it in a special bin for recycling
21. (Sample Answer) Smoke from cars or factories.
22. (Sample Answer) Use a reusable lunchbox or water bottle; recycle paper.
23. (Sample Answer) It means to use something again. For example, using an old t-shirt as a cleaning rag.
24. (Sample Answer) So that fish and other sea animals have a safe place to live.
25. (Sample Answer) Paper, plastic, glass, or metal.

Section 3: Air and Wind

26. False
27. True
28. False
29. True
30. True
31. C. Air that is moving
32. A. Breeze
33. B. Power a sailboat across the water
34. B. A wind vane
35. C. Damage buildings and trees
36. (Sample Answer) I can feel it on my face; I can feel myself breathing.
37. (Sample Answer) It can fly a kite; it can power a sailboat; it can turn a windmill to make electricity.
38. (Sample Answer) It can blow down trees or damage houses.
39. (Sample Answer) They shake and rustle, and some may blow off the branches.
40. (Sample Answer) The force of the wind pushes up against the kite and lifts it into the air.