To demonstrate how a convection current works.
Safety glasses must be worn at all times.
• Bunsen burner
• Tripod and gauze mat
• 1 teabag (or tea leaves)
• Approximately 250mL of water
Method:Set up the following equipment:Add approximately 6 tea leaves to one side.
Gently heat the side where the tea leaves are.
Observe the behaviour of the tea leaves.
Indicate what happens to the tea leaves in the diagram by
drawing an arrow.