Page 57 - ScienceStd4

Conclusion

The experiment confirmed that water in its liquid state has no
fixed shape but maintains a definite volume.

FOR ONLINE READING ONLY
Experiment 3: Investigating the properties of water in its
gaseous state

Aim: To demonstrate the properties of water in a

gaseous state

Materials: Water, a saucepan, and a heat source

(stove), mirror and thermometer

Note: This activity should be carried out under
the supervision of the subject teacher or

laboratory technician.

Procedure

1. Pour water into the saucepan.

2. Turn on the stove, then place the saucepan with water on
the stove. Allow the water to boil.

3. Observe what you see as the water starts to boil.

4. Let the water boil for about 10 minutes. What do you
notice?

5. Hold a mirror above the steam rising from the boiling water.
What do you notice on the mirror?

6. Record your results.

Results

As the temperature rises to 100 °C, water boils and produces
water vapour, which is water in its gaseous state. Water vapour

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14/01/2025 18:38
SCIENCE AND TECHNOLOGY STD 4.indd 50
SCIENCE AND TECHNOLOGY STD 4.indd 50 14/01/2025 18:38