Putting a candle out with carbon dioxide

What should we look out for in wine cellars? In this experiment we produce carbon dioxide with vinegar and baking powder.

Related extras

Forces

The animation shows the way forces act on wheeled vehicles and vehicles with runners.

Balloon on a skewer

Learn how to pierce a balloon without popping it.

The brachistochrone problem

Find out whether the marble reaches the finish line faster on the straight or on the curved slope.

Rock-paper-scissors

In rock-paper-scissors, the least popular choice of players is paper. But is it really the...

Archimedes' seesaw

In this experiment, we use buoyancy to study the balance of two glasses of water.

Suction pumps and direct action pumps

Direct action pumps and suction pumps are among the simplest water pumps.

Properties of matter: mass, volume and density

In certain cases, liquids do not mix together, and form layers instead. See what happens when we...

Boiling at room temperature

Water boils at 100 degrees Celsius. But is it possible to boil water at room temperature?

Added to your cart.