This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Learn how different types of soil affect how animal tracks form in this experiment!

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

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

This science fair project idea tests the efficiency of short term memory.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

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

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

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

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

This fascinating science fair project explores eye color genotypes.

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

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

Investigate the kinds of memories we tend to store and the emotions we store with them. Determine if memories have a strong emotional component.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

The objective of this experiment is to evaluate the effects of acid rain on plants.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

Do people only "hear" what they want to hear? Explore pareidolia and psychoacoustics with this easy science fair project that pits melody against white noise.

This science fair project idea investigates food preference of birds.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.