In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

What could be more fun than doing sidewalk art? How about making your own colored sidewalk chalk!

What better way to care for the earth than to create a Call to Action plan for the entire family?

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Looking for a fun way for your child to practice the basics of addition, subtraction, and multiplication? Look no further than this fun card game!

On a hot afternoon there is nothing better than a cold drink. Instead of making lemonade, your child can have lemon ice cubes ready to munch!

Do you hear "I forgot" more often than you would like? Give your kid a reason to remember to wash the dishes with a fun and colorful chore checklist!

What better way to raise awareness about the environment than with an eco-friendly Earth-themed party? Get your party started with this step-by-step guide.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

This paper alternative to tie-dye is faster, easier, and (slightly) less messy, only requiring paper, white crayons, and a little imagination.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Based on the popular "I Spy" game, this activity lets your kid practice important skills like number identification and place value.

Playing the Number Sentence Game with your child gives him the opportunity to practice ordering and comparing numbers using symbols.

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

Use a deck of playing cards to practice place value and other math concepts with your upper elementary child!

This science fair project idea investigates which objects float and sink in honey, water, and oil.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this fun math activity, second graders will learn to estimate items in a jar! 

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

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

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

Make practicing addition facts more fun and teach your child the helpful strategy of adding quickly to 10 in this fun and easy-to-make card game!

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Here's an arts and crafts activity that has your first-grader experimenting with math concept of multiples and patterns with her own printing plate.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Let your second grader channel a famous Dr. Seuss character--the Cat in the Hat--with this hat-making activity inspired by the main character.

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