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This bread mold experiment will help your child learn about mold, and he'll develop important hypothesis-making and experiment-designing skills.

This science fair project idea determines exactly how much of an effect road grade has upon a cyclistâs speed.

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

This science fair project idea examines which is the best way to get rid of water stains (stains caused by just water) on fabric.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Put those fall leaves to use with this fun art activity. Kids paint and print leaves, to make a beautiful tablecloth, perfect for your next fall celebration.

This experiment investigates whether the psychological phenomenon of the halo effect can be used to explain people's perceptions of others.

This project will examine the relationship between wind velocity and direction and the distance a baseball travels.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

This project examines what types of objects burn and which burn faster and cleaner.

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

This cool middle school science fair project idea helps students explore the role phototropism plays in the growth of green plants.

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

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

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!

Blanket forts are a kid classic! Let your child create a âfortress of solitudeâ on his own for reading, telling scary stories or for cozy cocooning.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

This easy at-home experiment is a great way to "see" science.

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

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

This science fair project idea explores alcoholic fermentation at work by making your own soda.