What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

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

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

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

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

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

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

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