Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

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

Check out this fun science project to explore the relationship between solubility, drug absorption, and time required for a drug effect to become apparent.

Measure the effectiveness of detergent containing a UV-absorbing compound in blocking UV-A radiation. Use black light and UV detecting beads.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Word color association is just a fancy way to talk about the way we connect colors with words.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

In this cool science project, model how impact craters form on the surface of the moon.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

This science fair project idea measures physical dexterity as a function of temperature.

Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

This science experiment tests if dog saliva can really help heal wounds.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

Is garlic antibacterial? Antimicrobial? Kids find out by using common kitchen equipment and ingredients in this cool and easy microbiology science fair project.

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

The objective of this science project is to investigate patterns in fingerprints among family members.

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

This science fair project tested various nose cones to determine which would be the most ideal shape for propelling a water rocket.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.