What happens to a hot water bottle after it has been filled up?
Where does the heat go?
Here are our ideas so far....
When you fill a water bottle it is very hot. You don't want to touch it. After a while it goes cold. I think the heat goes in to the air. By Ollie
When you fill the hot water bottle it feels hot and after a while it cools down to warm. When you take it to bed the heat goes into your bed to make it warm.If you are cold and you put the hot water bottle in your bed then it will get warmer. By Madison.
When you fill a hot water bottel with hot water it feels warm. After a while it goes cold. I think the heat escapes out the bottom. When you hop in to bed it is cold but when you put it in your bed it feels warm. When the heat touches your skin it touches your bed. By Trent
Listen to our Voicethread to hear more explanations:
We will do further research to develop our ideas!