This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Test whether plants can grow without sunlight and water.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

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.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

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

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

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

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This science fair project idea investigates the difference in reaction times between boys and girls.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

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.

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

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

Determine if gender affects the ability to identify different smells.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

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

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

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

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.