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.

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

This project compares the strength of one, two, and three-ply toilet paper.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

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

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

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

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

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!

Introduce your child to the amazing, almost magical phenomenon of static electricity!

This science fair project idea explores substances that cause a bubble to last longer.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

This science fair experiment idea's objective is to understand the general concept of an acid and a base.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.