In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.

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.

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

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

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

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 science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

Check out this cool science fair project idea on spectrum spinners and investigate how certain color combination can produce other colors.

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.

This classic children's game demonstrates how sound travels through air vs. through a solid.

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.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

This science fair project idea explores discover whether there are any patterns or trends in the memories between different genders.

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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

Kids make an electromagnet in this electromagnetic induction experiment to learn about induction, current, and the right-hand rule.

The objective of this experiment is to evaluate the effects of acid rain on plants.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

This science project investigates the influence of different genres of movies on appetite.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This science research project challenges students to think of more effective lobster farming methods.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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!

This science fair project idea examines if there is a reason that musical notes are at the pitches they are.

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

In this "paper and pen" science fair experiment, students will research the difference between standard time and astronomical mean time.