This science fair project idea quantifies exactly how accurate the cricket thermometer is.

This crafty activity provides a hands-on way for your child to illustrate how the trees look during each season of the year.

This science fair project idea explores if an LED light can be powered by vegetables and/or fruits.

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.

This experiment uses a voice recorder to monitor the progression of a message in the telephone game as it deviates from the original.

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

The goal of this science fair project is to attempt to build a perpetual motion machine and analyze the Laws of Thermodynamics.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.

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

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

This science fair project idea explores whether talking to a plant will help it grow.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Your kindergartener will make prints of his favorite fruits and vegetables and learn how to organize and assemble his very own book.

Learn about the factors that influence group conformity.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

Can cells be frozen? This science fair project provides information to answer this question.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Research responsibilities of physicists, and common thinking patterns. Devise a questionnaire that measures career aptitude in physics.

This biodiversity project examines the biodiversity in your own backyard.

Start your toy engines -- this is going to be a fast and friction-filled race!

Create a double-slit interference out of cardboard. Produce an interference pattern that demonstrates the wave and particle characteristics of light.

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

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.