Tag: state of matter

A pop pop boat in action! Following up on the steam-powered spinning top we talked about earlier, today we have a steam-powered pop pop boat. The mechanism is exactly the same as for the spinning top, except the boat is propelled forward rather than spinning around its own axis. Since the water that is pressed […]

How changing the state of water can drive motion. Somehow over the holidays we ended up playing with a lot of toys related to the change of state of water, or the expansion of air. First, over the next couple of posts, let’s go through the ones dealing with the change of state. The steam-powered […]