In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

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.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

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

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Do human lie detectors exist? Charge up your powers of observation to see if you can tell a lie from the truth.

Compare ability of selected materials to block UV-A radiation. Shine black light though glass at detecting beads underneath. Note color intensity.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

The objective of this science fair project is to assess the benefits of the game system for improving player performance following use.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

Students will investigate the illumination durations and intensities of different luminous substances of different colors of the spectrum.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

Science fair project that examines the benefits of the plant enzyme: pectin methyl esterase (PME). Where is PME found in the plant? What does it do chemically?

Help your child learn about animal classification with this fun and delicious activity.

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

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

What better way to celebrate spring than with a fabulous flower party? Pack the day with fun flower activities and treats for a truly springalicious event!

Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?

Science fair project that determines whether moths are attracted to one color of light more than others.

This science fair project idea determines the probability of a coin landing heads or tails.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Science fair project that determines whether brain size is correlated with intelligence.

Science fair project that compares the properties of different fabrics to determine whether natural or synthetic fabrics are better at wicking away moisture.