steamboat

又被称为「噗噗船」（popo boat）的科学玩具，因为前进时会发出「噗噗噗」的声音，製作过程如下。

Principle

After lighting the candle, the flame heats the aluminum foil steam chamber inside the Pupu boat, causing the water to evaporate into steam. Since liquid water evaporates into gaseous water vapor, its volume increases by more than a thousand times, so it will be pushed out through the straw. After the steam escapes, the pressure in the steam chamber will decrease, causing water to be sucked into the chamber. When the water is heated again, it becomes steam to push the Pupu boat, and this process will make the Pupu boat move forward.

※Dingning's words

1. Due to the use of candles and ignition in this game, children should not operate it independently. It must be played under the supervision of an adult.