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.

Sample questions

1. What is water commonly known as in chemistry?

   1. H2O
   2. O2
   3. CO2
   4. NaCl
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   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
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   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
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   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
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   Answer: B. Causes harm

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

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