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

Recycle old materials to create a fun, brain-teasing maze toy that also strengthens your child's math reasoning skills.

Help your child make an imaginative, inexpensive spaceship from recycled materials. When the spaceship is ready, count backwards from ten and then BLAST-OFF!

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

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

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

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

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

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Got a kid who loves fashion? Help her develop her own unique style with this tie-dye project using natural dyes.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

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

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

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

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.