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.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

Find out which kind of bubble wrap fares best when put in impact.

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

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

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

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 project children practice the scientific method while playing with puffy paint.

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

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

This science fair project idea investigates how color affects temperature.

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

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

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

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

This science fair project idea examines the reason boats are shaped and engineered.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!