This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This science fair project idea explores the egg's thin membrane.

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

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

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

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Learn whether writing things down really makes things easier to remember.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Help your kindergarten science maven explore the water cycle without getting everything wet.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea determines the most effective method of preserving food.