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.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

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

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.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

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.

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

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.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

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

Ignite your kindergartener's love of adventure and learning with an imaginary trip under the sea.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

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.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

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?

Try this chemistry experiment with your curious kid and get some "shocking" results!

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

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

In this science fair project, students create their own miniature salt flats at home.