Water Quiz - CBSE Class 6 Science

Free practice quiz: Water (CBSE Class 6 Science). 17 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 6 Science practice quiz has 17 multiple-choice questions on Water, and 17 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 water commonly known as in chemistry?

   1. H2O
   2. O2
   3. CO2
   4. NaCl
   Show answer

   Answer: A. H2O

   Water is chemically known as H2O because it consists of two hydrogen atoms bonded to one oxygen atom.

2. What is the process called when water changes from a liquid to gas?

   1. Condensation
   2. Evaporation
   3. Precipitation
   4. Transpiration
   Show answer

   Answer: B. Evaporation

   Evaporation is the process in which water changes from a liquid state to a gas state, typically due to heat.

3. How can excessive water evaporation affect agriculture?

   1. Improves crop yield
   2. Reduces soil salinity
   3. Causes drought
   4. Enhances growth
   Show answer

   Answer: C. Causes drought

   Excessive water evaporation can lead to drought conditions, which significantly affect agriculture by reducing crop yield.

4. What is the term for water that is found in the soil?

   1. Surface water
   2. Groundwater
   3. Ocean water
   4. Rainwater
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   Answer: B. Groundwater

   Groundwater refers to water that is found underground in the soil, filling the spaces between rocks and soil particles.

5. What is the effect of water pollution on aquatic life?

   1. Improves growth
   2. Causes harm
   3. No effect
   4. Enhances reproduction
   Show answer

   Answer: B. Causes harm

   Water pollution can have toxic effects on aquatic life, leading to health problems and decreasing populations.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Which state of matter is water in at room temperature?
2. How does water travel through a plant?
3. Which of the following is the largest source of fresh water on Earth?
4. In what form does water exist in the atmosphere?
5. What happens to water when it freezes?
6. If 10 liters of water evaporate from a lake, how many liters are left if the lake originally had 100 liters?
7. If a plant needs 2 liters of water each day, how much water will it need in a week?
8. Which process describes how plants release water vapor into the atmosphere?
9. What is the main reason why water is essential for all living organisms?
10. If a lake's water level decreases by 15% after a dry season, how much remains if the initial level was 200 liters?
11. What is the term for the cycle through which water moves through the environment?
12. How does deforestation impact the water cycle?

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