Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Find out which type of sponge holds the most water.

see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this experiment you will replicate the mummification process by making a hot dog mummy.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Use pepper and soap to discover some fun facts about the properties of water.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

This science fair project idea experiments with spinning color wheels and optical illusions.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

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.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Science fair project that examines how light wavelengths affect photosynthesis in the aquatic plant: Elodea.

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

High school students recreate Michael Faraday's experiment in this cool science fair project that induces current in a coil of wire.

This science fair project collects information on the Internet about yourself and others.

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

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

Discover how and which salt melts ice the quickest.

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 will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.