ورقة عمل Human impact on water resources في العلوم باللغة الإنجليزية للصف الخامس (2)

Revision worksheet U3L2 Human impact on water resources

Name :................................. Grade :........................ Date :.....................

Question 1 : Complete the diagram then answer the questions:

How to conserve water? give at least one example. .................................................................................................................................... Explain why we must conserve water? .................................................................................................................................... Question 2: Arrange the steps of algal bloom formation : Step (......): Heavy rain washes fertilizer from the soil into the water environment. Step (......): Fertilizers are added to plants and food crops. Step (.....): Algal bloom harms organisms that live in the water ecosystem . Step (......): Fertilizer causes the fast growth of algae.

Question 4 : Write the number of the meaning next to the keyword.

Question 3: Answer the questions about Acid rain. What are the gases that cause Acid Rain? 1-................................. 2-................................ What are the sources of these gases? 1-.................................................... 2-.................................................... What are the effects of Acid rain? 1-................................. 2-................................. 3-................................. What can be done to reduce or prevent further acid rain damage? .............................................................................................................................. Question 4: Choose the correct answer . 1.Why is it important to clean, conserve, and protect water?

A. Water is expensive. B. Water is a living thing. C. Water can be frozen. D. Water is a limited resource.

2.A scientist is studying the effects of burning fossil fuels. One effect is acid rain. She is creating a plan to prevent further acid rain damage to the ecosystem. What should the scientist include in her plan? Select all that apply.

A. Ask people to drive more instead of walking or biking. B. Develop vehicles that burn more gasoline per mile driven. C. Reduce the amount of public transportation available in the city. D. Develop vehicles that use renewable energy instead of fossil fuels. E. Encourage people to carpool instead of driving individual vehicles.

3.Which of the following is not one of the "three Rs" of conservation? A.recycle B.reduce C.refilter D. reuse

4.Which will most likely happen if lake water becomes polluted by humans? A .Animals in the lake will die. B.There will be more fish in the lake. C.The pollution will not hurt the plants or animals in the water. D.It will change the soil around the lake into pebbles.

5.It has been very dry in Miguel's city for the past several months. The local government has placed the city under a drought warning, which means people in the city should try to conserve as much water as possible. What can Miguel do to help conserve water? Select all that apply.

A. filter water before drinking it B. take short showers instead of baths C. brush his teeth at the same time each day turn off the water when he brushes his teeth D. wash his hands using hot water instead of cold water

6.Which of the following is one way humans pollute the hydrosphere? A.Fishing B.farming and causing soil runoff C.going on a paddle boat D.cleaning up an oil spill

7. Camila notices that people throw trash on the ground around the pond by her house. The ducks and fish that live in the pond can be harmed by this trash. Camila wants to come up with a plan to clean up the pond and keep it clean. Which of these should be part of Camila's plan? Select all that apply.

A. Put up signs that ask people not to litter. B. Move the ducks and fish to a new pond. C. Ask more people to come fish in the pond. D. Use nets to get the existing trash out of the water. E. Put trash cans around the pond for people to use.

8. Victoria went to a stream near her home and recorded these observations. What can you conclude from her observations?

A. It is clean. B. It is suitable to drink. C. It is polluted. D. It has lots of fish. 9. Most gases that lead to acid rain come from________________________ .

A. Natural resources B. Burning fossil fuels C. Fertilizers D. Pesticides

10. Which cause of water pollution is shown in the picture? A. oil spill B. Algal bloom C. Acid rain D. Plastics in water environment.

11. Which cause of water pollution is shown in the picture? A. oil spill B. Algal bloom C. Acid rain D. Plastics in water environment.

12. Which cause of water pollution is shown in the picture? A. oil spill B. Algal bloom C. Acid rain D. Plastics in water environment.