Use eggs to find out about momentum and changing direction. The fresh egg will start to spin again when the finger is released, while the other will remain at a…
Create a working demonstration of Lenz’s law. As the magnet falls down the tube, it demonstrates Lenz’s law. Moving the magnet next to the non-magnetic metal induces an electrical current…
Clean a penny using cola. Pennies have a copper coating. As the copper gets older, it reacts with the oxygen in the air and begins to form a copper-oxygen compound.…
Create a liquid that turns into a solid when tapped. How does it work? When you mix corn starch with water, the large corn starch particles remain suspended in the…
Create a water vortex in a bottle. The water is rapidly spinning around the center of the vortex due to centripetal force. This is an inward force directing an object…
Find out what happens when gases are heated up or cooled down. The gas expands when it is heated. The rule is that if the gas's pressure remains constant, the…
Layer different liquids in a tube and discover how and why they settle in a particular order. Density is a comparison between an object’s mass and volume. Different liquids have…
Push a wooden skewer through a balloon without popping it, creating a "balloon kebab." Most of the balloon is stretched ePush a wooden skewer through a balloon without popping it,…
Make two ping-pong balls float in the airflow of a hairdryer simultaneously, without hitting each other. The hairdryer produces a high-velocity stream of air with low pressure. The surrounding air…