Test whether plants can grow without sunlight and water.

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

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

Cleaning can be a chore, but not with this sudsy experiment!

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

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

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

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

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

In this experiment we will be determining whether birds prefer certain colors of seed.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Is your child a nature nut with an eye for creative, green-friendly projects? Introduce them to this amazing DIY bird feeder!

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

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Test your friends to find out if you can replicate the placebo effect's incredible results.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Teach your child how butter is created by shaking up cream the old-fashioned way.

Making your own glass cleaner is easy, effective and inexpensive!

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

This science fair project idea determines the probability of a coin landing heads or tails.

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