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MCQ on Class 6 Science A Journey through States of Water

Last updated on September 2nd, 2024 at 10:52 pm

 

Which state of water has a fixed shape?

  1. Solid
  2. Liquid
  3. Gas
  4. None of the above

Answer: a) Solid

MCQ on Class 6 Science A Journey through States of Water

What happens to water molecules during evaporation?

  1. They slow down
  2. They speed up
  3. They become heavier
  4. They change color

Answer: b) They speed up

 

What is the main source of energy for the water cycle?

  1. Wind
  2. Gravity
  3. The Sun
  4. Earth’s core

Answer: c) The Sun

 

What causes dew to form on grass in the morning?

  1. Rain
  2. Condensation
  3. Evaporation
  4. Transpiration

Answer: b) Condensation

 

 

What happens to the temperature of remaining water as some of it evaporates?

  1. It increases
  2. It decreases
  3. It stays the same
  4. It fluctuates randomly

Answer: b) It decreases

 

Which of these would evaporate fastest?

  1. Alcohol
  2. Water
  3. Oil
  4. Honey

Answer: a) Alcohol

 

What is the primary reason for using an earthen pot to store water?

  1. It’s cheap
  2. It’s traditional
  3. It keeps water cool through evaporation
  4. It improves water taste

Answer: c) It keeps water cool through evaporation

 

In which of these locations would evaporation likely be slowest?

  1. Desert
  2. Tropical rainforest
  3. Mountain top
  4. Arctic tundra

Answer: b) Tropical rainforest

 

What is the main difference between evaporation and boiling?

  1. Evaporation only occurs at the surface, boiling throughout the liquid
  2. Evaporation requires more energy than boiling
  3. Boiling only occurs at the surface, evaporation throughout the liquid
  4. There is no difference

Answer: a) Evaporation only occurs at the surface, boiling throughout the liquid

 

 

What causes fog to form?

  1. Rapid evaporation
  2. Rapid condensation near the ground
  3. Heavy rainfall
  4. Strong winds

Answer: b) Rapid condensation near the ground

 

 

What happens to the humidity of air as temperature increases?

  1. It increases
  2. It decreases
  3. It remains constant
  4. It becomes zero

Answer: b) It decreases

MCQ on Class 6 Science A Journey through States of Water

Which of these would evaporate faster?

  1. Salt water
  2. Pure water
  3. Sugar water
  4. All would evaporate at the same rate

Answer: b) Pure water

 

Which of these is NOT a way to increase the rate of evaporation?

  1. Using a fan
  2. Spreading the liquid out
  3. Increasing temperature
  4. Increasing pressure

Answer: d) Increasing pressure

 

What is the main reason for sprinkling water on the floor during summer?

  1. To clean the floor
  2. To increase humidity
  3. To cool the surroundings through evaporation
  4. To prevent dust from rising

Answer: c) To cool the surroundings through evaporation

 

 

What happens to the kinetic energy of water molecules during condensation?

  1. It increases
  2. It decreases
  3. It remains the same
  4. It becomes zero

Answer: b) It decreases

 

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