Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

In this science fair project, students create their own miniature salt flats at home.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

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.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Find out whether packaged seeds actually do expire in this new science fair project idea.

This science fair project idea discovers which parts of the body are more sensitive to touch than other parts of the body.

In this experiment we will be determining whether birds prefer certain colors of seed.

Check out this cool science fair project on identifying rocks and minerals for kids.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Science fair project that determines whether mass and weight are the same or different.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Teach your child how butter is created by shaking up cream the old-fashioned way.