In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

This science fair project idea explores how length affects the weight a bridge can hold.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Create a bee garden to help shelter bees in your area.

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.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Science fair project that examines condensation and the conditions needed in order for dew to form.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

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

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Plants and light seem to be good buddies, but how far does the friendship really go?