In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

How do organic materials become soil? This science experiment measures what materials biodegrade.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Engineers in training can get started with this simple wheel-and-axle construction activity.

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

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

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

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

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

This classic children's game demonstrates how sound travels through air vs. through a solid.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Create a self-portrait from natural materials in this collage craft activity!

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

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

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.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.