The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

This science project challenges students to study the salt content in tap water and learn about electrochemistry.

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

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

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

A mixture of botany, exploration, Abstract Art and Pop Art color theoryâthis activity never gets dull! Start by exploring outdoors and finish with indoor art.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Help your preschooler craft a homemade wind spinning device--a surefire to make your backyard sparkle, and teach her a bit about weather!

Kids are sure to be entranced by the magic of the ocean when they create their very own ocean in a bottle.

Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

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

This science fair project idea creates an underwater habitat and explores the basic needs of living things under water.

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

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

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

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

Explore the neural and mental mechanisms at play in mental imagery.

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.

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

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?

Science fair project that determines whether spreading a moss soup over an area increases moss growth.

This science fair project idea explores alcoholic fermentation at work by making your own soda.