This science fair project idea determines the probability of a coin landing heads or tails.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

This project explores ways to prevent static electrical shocks.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

This science fair project idea examines which type of insulation holds in the most heat.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Discover whether a metal will expand under hot water.

In this experiment we will be determining whether birds prefer certain colors of seed.

This experiment tests which gender is better at catching how a magician performs his tricks.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

This science fair project explores how osmotic pressure forces water through the root up into the plant.

In this science fair project, students create their own miniature salt flats at home.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

This science fair project idea explores which fruit molds the fastest.

This science fair project idea produces varying pitches of sound.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

This science fair project idea researches the effects of acid rain on plant growth.