Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

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 which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

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

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Help your little one figure out the differences between the worlds of air, land and water, a huge step in understanding how our environment works.

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

This science fair project idea compares whether ionic dryers leave hair in better condition than non-ionic dryers.

Show your teen how to make her own beeswax lip balm. It's one of the simplest do-it-yourself activities, and it's fun to make!

Here's an arts and crafts activity for preschoolers and pre-kindergarteners: build brick buildings with homemade mud bricks made from dirt and water.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

Culverts transport seeds away from their original location to different places. This science project examines the effect of culverts on plant growth in streams.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Science fair project that determines how your mirror image differs from your actual image and how virtual images are constructed.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

The objective of this science project is to investigate why NASA has been using aerogel for the Stardust Project for collecting gas and dust from comets.

Design a hearing protection device to protect their ears from loud noises. Examine the properties of current protective hearing devices, materials.

Follow in the footsteps of movie character legends as you walk your little one through the steps of becoming a junior archaeologist.

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

In this science fair experiment about recycling, demonstrate how the wax from a candle can be reused to make another candle.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.