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In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

This clay "painting" activity encourages and supports creative development and critical thinking skills.

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

Put an oatmeal box, a flashlight, and some construction paper together and you have the makings of an incredibly cool bedroom planetarium!

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

When critters protect themselves by taking on the patterns of nature, it's called "camouflage." Play this camouflage matching game with your child!

Here's a pressed leaf card project that puts science and writing together for your second grader.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

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

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

This science fair project idea determines which method of hand cleansing is the most effective.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Help your young learner discover why the insects that a spider eats stick to its web but the spider doesn't.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

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

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This science fair project idea determines what household items are good conductors of electricity.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.