WHAT YOU NEED: 

• Tea bag
• Scissors
• Lighter or match 

WHAT YOU DO: 

• Cut the top off your tea bag and dump out the tea.
• Open the bag so it’s a big empty cylinder 
  
• Set your open tea bag on a non-flammable surface with open space around and above it
• Light the top of the tea bag, step back and watch what happens! 

WHAT IS HAPPENING: 

As the fire burns the tea bag, all that warm air is being funneled inside the cylinder. The warm air expands, so in a confined space, it needs somewhere to go. We also know that warm air rises because it’s less dense. Since the tea bag itself is so light, it is carried along with that warm air into the air! 

DISCUSSION IDEAS:

How does warm air moving affect our weather?