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

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

In this science fair project, students evaluate if the phases of the moon affect the way people feel.

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

This science fair project idea assesses the effect of music on work performance.

This science project helps students gain understanding of bioluminescence, the phenomenon that allows fireflies and glow worms to give off light.

Checkerboard play challenges students to use spatial reasoning and computational thinking.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

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.

What is a barycenter? Kids learn how gravity and mass influence the orbit of binary systems like planets and moons or stars and planets in this cool experiment.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This project compares different liquids and the freezing, melting and boiling points of liquids.

Find out whether a longer airplane will fly farther or a wider paper airplane.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This high school science fair project investigates if small changes in your diet alter the pH of your saliva.

This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

Learn about the horizontal and vertical motion of a projectile in this cool physics science fair project idea for advanced middle and high school students.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

Score a bull's eye with this cool science fair project on horizontal projectile motion. Guide a marble to its target and predict its trajectory using math!

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.