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

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

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

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.

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

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

The scientific purpose of this experiment is to investigate which material is the best packaging for fragile items during shipping.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

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.

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

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

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 examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

The objective of this science project is to determine the length of time for different seeds to germinate.

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

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

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

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

This project researches whether the type of land use affects the water quality of Queenstown Creek.