Water Quiz - CBSE Class 5 Science

Free practice quiz: Water (CBSE Class 5 Science). 19 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 5 Science practice quiz has 19 multiple-choice questions on Water, and 19 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. What is the primary source of water on Earth?

   1. Oceans
   2. Rivers
   3. Lakes
   4. Rain
   Show answer

   Answer: A. Oceans

   Oceans are the largest and primary source of water on Earth, covering about 71% of the Earth's surface.

2. What happens during condensation?

   1. Water vapor cools and becomes liquid
   2. Water heats up and forms vapor
   3. Water freezes into ice
   4. Water mixes with air
   Show answer

   Answer: A. Water vapor cools and becomes liquid

   Condensation occurs when water vapor loses energy and turns into a liquid, like when clouds form.

3. How does water move from plants to the atmosphere?

   1. Photosynthesis
   2. Osmosis
   3. Transpiration
   4. Condensation
   Show answer

   Answer: C. Transpiration

   Transpiration is the process by which water evaporates from plant leaves into the atmosphere.

4. What is the primary cause of acid rain?

   1. Burning fossil fuels
   2. Clear skies
   3. Plant growth
   4. Water pollution
   Show answer

   Answer: A. Burning fossil fuels

   Acid rain is primarily caused by emissions from burning fossil fuels that react with water in the atmosphere.

5. What is the role of wetlands in water purification?

   1. Polluting water
   2. Increasing salinity
   3. Filtering pollutants
   4. Blocking sunlight
   Show answer

   Answer: C. Filtering pollutants

   Wetlands act as natural filters, trapping pollutants and purifying water before it enters rivers and lakes.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Which form of water is a solid?
2. What process turns liquid water into water vapor?
3. Which of the following is an example of precipitation?
4. Which cycle involves the movement of water through the atmosphere and back to the Earth's surface?
5. Which human activity can most directly cause water pollution?
6. What term describes the underground formation storing water?
7. Which is an effect of water scarcity?
8. Why is the conservation of water important?
9. Which process is primarily responsible for groundwater recharge?
10. Which factor does NOT affect the water cycle?
11. Which human activity most impacts the natural water cycle?
12. What happens to water molecules during the freezing process?
13. Which action most effectively conserves water at home?
14. How do dams impact local ecosystems?

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