This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

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

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Determine whether butterflies like to drink sugar water, salt water, or plain water.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

This activity challenges your student to use spatial reasoning and computational thinking to program multiple robots.

Bring the fun of gardening indoors! By stuffing a simple pair of pantyhose with a few grass seeds on top, your child can grow her very own plant pet.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Find out whether matte or shiny nail polish lasts longer.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Which do you prefer: real or artificial? Try this sweet little taste experiment to help your kids develop a better awareness of the food they consume.

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