Page 48 - Science Class 6 Times Publication

Activity 4.5
To show expansion of liquid due to heat

Materials required: A round bottom ask, coloured water, a glass
tube, cork, etc.

Procedure

1. Take a round bottomed ask and

ll it with coloured water.

2. Insert a glass tube through a
cork as shown in the  gure.

3. Heat the ask with burner or
spirit lamp. What happens?

Observation: The water rises in the

tube. The colour helps to nd the actual
level of water in the tube.

Conclusion: Liquid expands on heating.

Activity 4.6

To show expansion of gas due to heat

Materials required: A balloon, ask, trough, hot water, etc.

Procedure
1. Take a balloon.
2. Fix its mouth with the mouth of a ask as shown in the  gure.

3. Keep the ask in the hot water. What happens?

Times' Crucial Science and Environment 44 Book 6