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Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Your fourth grader will hone his fine motor skills and learn to follow directions as he creates this recycled angel tree topper out of an ordinary soda bottle!

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

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.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

This Thanksgiving table runner craft isn't just fun and festive, it also helps your child build muscles for hand strength, fine motor skills, and handwriting.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Do different types of oil mix or stack? Find out in this science fair project idea!

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

In this arts and crafts activity, help your kindergartener make friendship bracelets with just safety pins, elastic, and some colorful beads.

Discover whether cold or hot water from the faucet will boil faster on the stove.

All you and your kid need for this entertaining game are some conversation hearts, a candy that's practically synonymous with Valentine's Day!

Make these delicious and festive smoothies with your kids this Fourth of July to celebrate the holiday with a healthy twist.

Many ancient cultures used the rising or setting sun to create calendars. Observe the setting sun once a week to come up with your own solar calendar!

Create a winter centerpiece that will fill your entire house will holiday cheer. This winter centerpiece is seasonal whether there's snow outside or not.

Take advantage of the summer sun to make you and your child a delightfully refreshing treat--sun tea!

Your child will need to combine his sporty hand-eye coordination skills with his math skills to become the bullseye king.

To help your child shake the big number blues, here's a handy strategy to make your child a place value pro!

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

Here's a fun, geometric puzzle activity that will capture your child's interest and strengthen his number awareness and graphing skills.

A great recipe for a Cinco de Mayo party or any fiesta, any time of the year!