7 Science Tricks with Surface Tension

The video explores various experiments demonstrating surface tension and other phenomena. It starts with creating colorful patterns using milk, food coloring, and soap. The presenter then shares a discovery of soapy spheres in coffee, which can be recreated with other liquids. A soap-powered boat is demonstrated, followed by a trick where surface tension holds water in a jar with a screen. The video also shows how a paperclip can float on water and the effect of soap on it. Finally, the Leidenfrost effect is illustrated with water droplets on a hot pan.

What happens when you dip a soapy Q-tip into the center of food coloring on milk?

• The colors mix together.

• The colors form a solid shape.

• The colors create a fireworks-like pattern.

• The colors disappear.

What was the accidental discovery made with coffee and soap?

• The coffee evaporated quickly.

• The coffee became thicker.

• Small spheres formed on the surface.

• The coffee changed color.

How can you power a paper boat on water?

• By breaking the surface tension with soap.

• By adding more water.

• By using a magnet.

• By blowing on it.

What allows a jar of water to stay in place when turned upside down with a screen?

• The air pressure inside the jar.

• The surface tension across the screen.

• The tightness of the lid.

• The weight of the water.

What happens to water droplets on a hot pan as it heats up?

• They form perfect little spheres.

• They change color.

• They evaporate instantly.

• They spread out evenly.