Science  Fair Projects can be fun if you remember a few rules, such as: 1. Your project should be a cause/effect investigation. 2. In this type of investigation you only want two variables to change and all the other variables are kept constant. So what do these two rules mean? The easiest way to explain [...]

Inertia is a physical property used to describe how difficult it is to move a stationary object. The greater the inertia the harder it is to move the object. Inertia increases with mass. A magician’s trick of pulling a table cloth out from under a table setting and leaving the dishes standing is not a [...]

Set UP: Secure a string between two stationary objects. You want the string to be as long as needed for your audience to observe it. Clip paper clips to the string so that they can freely spin around the string. The number of paper clips is up to you. You might try some of the [...]

Before the Greek mathematician and inventor Archimedes (C.287-212 B.C.), nobody knew why some things float and others don’t. It is said that Archimedes’ king gave a silversmith a certain amount of gold to make him a new crown. When the crown was finished, the king asked Archimedes to figure out a way to secretly determine [...]

Blowing across the open mouth of a bottle causes the air inside the bottle to vibrate. The vibrating air produces sound. The pitch of the sound is determined by how fast the air vibrates. As the air inside the bottle decreases it vibrates faster and produces a higher pitched sound. You could write the relationship [...]