This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

In this science fair project you will make a model of a cell membrane using very simple material.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

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

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

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.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

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

Examine the effect of pressure on carbonation in soda.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

This science fair project idea investigates whether air has mass and weight.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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.

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

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.