This science fair project idea demonstrates that plants give off water.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Do different types of oil mix or stack? Find out in this science fair project idea!

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

In this activity your child will create their very own marble maze!

Discover whether cold or hot water from the faucet will boil faster on the stove.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Test whether plants can grow without sunlight and water.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Learn all about balance and motion as your child designs a corn maze!

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

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

This project determines what category of person is most likely to be ticklish.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

This science fair project idea explores how length affects the weight a bridge can hold.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.