The flying tea bag experiment is really a heat experiment masked as a super cool trick. As the flame burns is heats the air inside the hollow center of the tea bag. As the air gets hotter the molecules become less dense and move around.
The less dense warmer air rises above the more dense cooler air around the tea bag. Since the tea bag is so light it rises with it and appears to fly. This is a fun, hands on way for kids to see how heat effects air molecules.
https://www.coffeecupsandcrayons.com/flying-tea-bag-experiment-for-kids/
Many tea lovers aren’t aware of the health-related problems with tea bags. Most tea bags are not biodegradable, which makes them a serious waste product and harmful for the environment. Usually, tea bags are made of bleached paper, nylon, and plastic. When submerged in boiling water, tea bags release billions of harmful microplastic per serving.
https://www.myteadrop.com/blogs/news/what-are-tea-bags-made-of
