Explain the second law of thermodynamics to a 6 year old kid. Make the explanation very intuitive to understand for a kid and provide an easy to understand example.
The second law of thermodynamics is a big science idea, but it's actually pretty simple! Imagine you have a cup of cold ice cream and a cup of hot coffee. If you left them on the table, what would happen? The hot coffee would get cold and the cold ice cream would get warm, until they are both the same temperature. This is because heat wants to flow from hot things to cold things. This is the second law of thermodynamics - heat will always flow from hot things to cold things, until everything is the same temperature.
thanks. what else would be interesting to learn for the kid after?
Force = mass*acceleration. If you throw a light ball with some force, it will go very fast. But if the ball was heavier, the same force would give it far less speed. Similarly, if you were a lot stronger, you could throw it farther, or you could throw a heavier ball just as far.