Check out this cool science fair project idea to explore various aspects of projectile motions like mass, angle and distance.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Is exercise a cellular activity? Check out this fun science fair project idea to compare the carbon dioxide production before and after exercise.

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

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Scavenger Hunt! Check out this fun science fair project idea to explore the difference between opaque, translucent, and transparent objects around your house.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Is garlic antibacterial? Antimicrobial? Kids find out by using common kitchen equipment and ingredients in this cool and easy microbiology science fair project.

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

Will people still feel hungry once they eliminate grains from their meal? Find out in this science fair project idea!

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

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

Find out whether pacing in long-distance running actually acquires for drastic changes in finishing times versus running super-fast at the start.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

This experiment explores whether music affects the growth of bacteria and could help figure out better ways to process sewage and other microbe-assisted duties.

Make your own greenhouse - out of a balloon! Your child will learn how greenhouses work as they plant radish seeds and watch them grow.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

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

Looking for a fun project on energy? Check out this fun elementary school science fair project idea that demonstrates chemical energy in a bottle.

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

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!