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.

Create a habitat for a butterfly right in your own backyard, and build your first grader's science knowledge while you're at it.

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.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

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.

Children are imaginative story-builders. Create a shoebox habitat with your child to put those budding creative instincts to good use.

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.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

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!

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

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.