Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Does your fifth grader need a study buddy for geometry? Forget about a tutor. Help him make his own geometry dictionary!

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Explore the math concept of probability with your fifth grader on "lucky" St. Patrick's day this year!

Learn about coins and their value by making an animal piggy bank. Here's how to make a lion, pig, or sheep bank!

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

The Kindergarten Personal Record Book makes measurement fun & active! Kids record their vital statistics from head to toe using unusual tools like paper clips.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Make a Christmas countdown calendar to get your child excited about the coming holiday. This Christmas countdown calendar helps you make holiday memories.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

The objective of this experiment is to evaluate the effects of acid rain on plants.

Can cells be frozen? This science fair project provides information to answer this question.

This project examines the concentration of dissolved oxygen in water, with and without oil.