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What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

In this design challenge, your child will create a parachute for a small toy using typical household items.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

This science fair project idea examines whether boys and girls differ in reflexes.

This science fair project idea explores whether talking to a plant will help it grow.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

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

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Making your own glass cleaner is easy, effective and inexpensive!

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This science fair project idea investigates whether plants can survive being frozen.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Discover whether cold or hot water from the faucet will boil faster on the stove.

This science fair project idea explores the different properties & interactions of sugar molecules.

This science fair project idea investigates if fats add to the flavor of food.

Examine the effect of pressure on carbonation in soda.