EQUIPMENT REQUIRED:
Fizzy drink
KP original salted peanuts
Pint glass
METHOD:
Pour the fizzy drink into the pint glass and add a handful of peanuts. Watch what happens – you have made a lava lamp.
RESULT:
The nuts sink at first as they are heavy. Bubbles form on the surface of the peanuts (they act as nucleation sites – places where carbon dioxide can form bubbles), which causes the peanuts to rise. When they get to the surface the bubbles escape and therefore the peanuts fall again.
How long does it last for?
You can experiment with all sorts of fizzy drinks and different types of peanuts or even raisins. |
