Observing Convection - Science

Aim: To observe convection in gas.

Equipment: Scissors, Paper Spiral Pattern, String, Source Of Heat
 ( Boiling Water or Radiator etc.).

Method:
1.) Cut out the spiral pattern carefully.

2.) Tie a length of cotton through the hole on the top of the spiral.

3.) Hold the spiral 30-40 cm above a heat source such as a radiator.

4.) observe

Results and Discussion:

Result: In this experiment, the spiral piece of paper turned as we placed the paper above the bunsen burner, why? Because the hot air is lighter than cold the hot air was able to rise making the spiral turn this is why they use hot air in hot air balloons.