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

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

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

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?

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

This science experiment has students test whether a snail moves faster on concrete or dirt.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project examines how seeds hitchhike on animals and clothing.

Learn all about balance and motion as your child designs a corn maze!

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

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

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!