How much does 100 weigh? Play this fun guessing game with your child to commemorate the 100th day of school.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Whatever is stacked in your cupboard can be used to help your child learn how to compare fractions and decimals. A great hands-on math lesson!

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.

Combine art, history and food with this unique project! Your child will make her own butters, and learn a little about Colonial history at the same time

The crust is fun for kids to mix and roll out, and the filling overflows with vitamin and anti-oxidant packed berries!

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

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

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!

This Halloween math activity book is a whole lot of fun.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

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

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This project tests the hypothesis that dark colors absorb more heat than light colors.

Help your child practice symmetry with this fun activity that will leave your child with a sweet symmetrical treat!

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.

Have your child observe, measure and record the amount of space objects occupy, and you'll have an inside space explorer on your hands in no time!

This hands-on activity gives your child an opportunity to apply various strategies to solve a problem and to check if his answer makes sense.

Do you think heat can affect a plant's growth rate?

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

Help your curious kid cut through the clutter and collect the facts with a simple and fun science foldable.