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

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

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

Discover whether a metal will expand under hot water.

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?

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

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

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 is develops new or improved paper making techniques and encourages recycling.

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.

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

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Find out whether putting something on top of a plant will inhibit its growth.

Find out which kind of bubble wrap fares best when put in impact.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

This science fair project idea investigates how color affects temperature.