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

Use pepper and soap to discover some fun facts about the properties of water.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

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

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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

This science fair project idea experiments with spinning color wheels and optical illusions.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

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.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Discover flight initiation distance as you play around in the park with this fun bird watching project!