In this activity, your kid has your permission to get his socks nice and filthy. In fact, it's a necessity, because those socks are going to make a garden.

First graders are learning basic addition and subtraction math facts. Practice in the sandbox with this fun outdoor math activity!

Use pepper and soap to discover some fun facts about the properties of water.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Do this activity to help your kids see how seeds contain "baby" versions of big plant stems, roots, and leaves.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

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!

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

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.

What better way to nurture your child's imagination than by making a fairy house out of materials found in nature!

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.