Be the life of the party at the next get-together and amaze your friends with cool science tricks and experiments! There are many simple and easy experiments that only require materials that can be found around the house.
The Lava Lamp trick is one experiment which only requires a few items, all easily found in the home. For this experiment, one needs a plastic bottle (the bigger, the better), water, oil, food coloring, and effervescent tablets. Alka-Seltzer is an example of an effervescent tablet.
Fill the plastic bottle up half way with oil and the rest of the way with water. Leave a little space, about an inch, at the top. Add the food coloring, about ten drops. Take the effervescent tablet and break it in half or quarters. Add one piece of the tablet at a time to create the effect. Adding all the tablet at one time may create too many bubbles. The bubbles shoot little globs of colored water upward and then they slowly come back down when the effervescence stops. This is a great experiment for a 70s party.
Lift an Ice Cube with a String
Your friends may say it can’t be done, but yes, it can! All that is required for this experiment is a glass of cold water, an ice cube, a piece of string, and the magic ingredient which is salt.
Place the ice cube in the glass of cold water and wait a few seconds until it floats to the top. Lay a piece of string on top of the ice cube and sprinkle salt over it. Wait 5 seconds and gently lift the string out of the water. Voila! The ice cube will be attached to the string and will lift right out! This experiment works because of the melting properties of the salt.
Flying Puffed Cereal
This is one way to show your friends how to make their cereal fly! All that is needed is a plastic spoon, a wool scarf, and puffed cereal. Pour some cereal into a bowl. Rub the spoon with the wool scarf. This creates a negative charge on the spoon. The puffed cereal is attracted to the negative charge and leaps onto the spoon. The cereal then becomes negatively charged itself, and because negative charges repel one another, the cereal flies off!