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Help your kindergarten scientist explore an important part of earth science: how soil retains water.

This science fair project idea investigates food preference of birds.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

How does mold grow? Kids find out by testing different conditions to measure mold growth rate and learn about what factors cause mold to grow more quickly.

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

This free science fair project explores the "dirty" relationship between the presence of organic material in soil and water absorbency.

This science fair project idea investigates whether plants can survive being frozen.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

Explore convex and concave objects and how they reflect light.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

This experiment will use computers to examine how the famous Mandelbrot set can be manipulated in fractals.

This science fair project idea studies whether a religious sleeping schedule relates to a higher IQ.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

This experiment explores how listening in to a one-sided conversation affects concentration.

What kind of fabric holds dye best? How can you improve a dyed fabric's colorfastness? In this colorful project, test colorfastness using mordants and bleach.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

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.