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 idea deals with the qualities of shade on a sunny day.

Grow these wheatgrass and alfalfa friends and watch their hair spring up in just a couple days!

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

This science fair project idea studies the acidity of rain water and whether the acidity is the same on all rainy days or does it fluctuate.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

It has long been believed that weather influences mood and behavior. This experiment will evaluate if weather can really impact the way people feel.

This science fair project idea compares the cuteness reaction between genders.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

In the mood for a bit of silly science? Help your child create a truly one-of-a-kind planter out of a potato head!

First graders are learning to think like scientists. What better place to start, then by raising tadpoles? This hands-on activity explores science in action!

Here's a great early reading and science activity for curious children. Learn how to plant your child's name in seeds for a growing writing activity!

Create a bee garden to help shelter bees in your area.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

This fun and crafty activity is easy enough for your child to lend a helping hand and makes a great indoor or outdoor game.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

Get a better understanding of water content by dehydrating carrots.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Check out this fun science project idea on ecological succession and learn the main difference between primary and secondary succession.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.