Using a toy race car kids create a visual model of the Doppler Effect.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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

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

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Learn all about balance and motion as your child designs a corn maze!

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

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

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

The objective of this science project is to determine the length of time for different seeds to germinate.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

People have favorite flavors, but what about ants? Which ant food is the most popular?