CTET Paper 1 · Environmental Studies (EVS)

An EVS teacher demonstrates an experiment in class in which an egg sinks in a tumbler with water, but floats upon adding salt to the water. Which of the following is the most appropriate explanation she can give to students’ enquiry ?

  1. You will learn the correct reason in higher classes.
  2. Conduct and observe the experiment with different amounts of salt.
  3. Allow each student to conclude on their own by adding different items in water.
  4. The egg floats due to density of water.
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