convection experiment

Tea bag rockets

Today in science we did an experiment using tea bags, our aim was to observe convection. Convection is when an object has been heated causing the particles to break apart from each other then eventually floating up into the air. First we had to cut the top of the tea bag leaving it open to empty it out. Then we made the bag stand up, and use a lighter or matches to light it on fire. As it burnt to the bottom it soon flew up and floated, then slowly came down. Because the bag was heated up it caused the particles to break apart fast then slowly float upwards. I think this experiment was really cool because this is something you don´t get to see everyday, and seeing everyone´s reaction was funny.