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This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

In this activity your child will create their very own marble maze!

This science fair project teaches students the differences between fruits and vegetables.

The goal of this project is to create an exciting topographical map out of dough.

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.

This science project teaches students to classify different shapes of leaves.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Find out which kind of bubble wrap fares best when put in impact.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

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

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project will help students learn about non-vascular plants, such as mosses.

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea experiments with spinning color wheels and optical illusions.

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

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.

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

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Examine the effect of pressure on carbonation in soda.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.