Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

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

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This will encourage your child to utilize their observation skills, develop aesthetic awareness, build artistic drawing abilities and learn about the seasons.

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

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.

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!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Cleaning can be a chore, but not with this sudsy experiment!

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

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

This winter garden project is just about bomb-proof, and believe it or not, it might even make a great gift. So get craft happy with your first grader!

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Allow your first grader to get his artwork outdoors this summer by letting him create a garden art box for his arts and crafts supplies.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

This science fair project idea investigates how the shape of an object affects drag.