Candle in the water
A burning candle stands in a small bowl of water. A glass is placed on top of it. After some time the flame extinguishes because the all of the oxygen under the glass is used up. Why does the water level rise inside the glass?
You can find hints behind the buttons on the right which can be helpful for solving the task. Choose one of them! You can work on as many hints as you like to.
Helpful hints
Juice defies gravity
Let's think about things we can learn from Juice.
Let's think about things we can learn from Juice.
A bottle full of air...
Experiments with a balloon that gets hot and cold.
Experiments with a balloon that gets hot and cold.
A hot-air glass in action
A glass pressurizes you.
A glass pressurizes you.
The hemispheres of Magdeburg
Otto von Guericke demonstrates the force of air-pressure.
Otto von Guericke demonstrates the force of air-pressure.
This could be useful...
You can find important physics background knowledge in the toolbox.
You can find important physics background knowledge in the toolbox.
"I have got it!!...
...and I want to answer the question
...and I want to answer the question