Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

This experiment will explore the best way to create a perfect soft-boiled egg.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

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!

Check out this hot project idea to culture bacteria and determine if the claims about the anti-bacterial properties of curry and cinnamon are true.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

This biodiversity project examines the biodiversity in your own backyard.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

Science fair project which compares the rates of photosynthesis for various light sources. Which type of light will be best for photosynthesis and why?

The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Here's a simple science activity that will help your child better understand how wells bring us water.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

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

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.