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Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

Use a fish tank to simulate a pond! This science fair project explores the relationship between acid rain and the dissolved oxygen concentration of water.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

Do heavier objects fall faster than lighter ones? Students learn the answer by watching the effect gravity in a vacuum has on a coin and a feather.

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?

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

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.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

This science fair project idea compares whether ionic dryers leave hair in better condition than non-ionic dryers.

Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.

High school students learn about resistance, resistivity, and if copper is the best metal conductor in this great physics science fair project idea.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

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.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This project examines the concentration of dissolved oxygen in water, with and without oil.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

This science fair project idea determines the most effective method of preserving food.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

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

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

This science fair project ideaexplores whether cooking food destroys potential vitamin levels.

Find out which part of a flame burns wood the fastest and also if this is true for all types of flames such as candle-flame, burners, and lighters.