Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

Do different types of oil mix or stack? Find out in this science fair project idea!

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

This science fair project idea demonstrates that plants give off water.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Test whether plants can grow without sunlight and water.

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

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Discover whether cold or hot water from the faucet will boil faster on the stove.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

People have favorite flavors, but what about ants? Which ant food is the most popular?

Science fair project that examines condensation and the conditions needed in order for dew to form.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

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.

This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

Create your very own scented hand sanitizer that will help your child to keep those nasty germs at bay!

In this science fair project, young children discover what happens when two fluids that have different densities get together.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Tin can phones offer something modern versions don't—a fun project to make with a friend, and a dramatic illustration of vibration and sound waves.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Is it a square or a circle? See if you can trick your friends with this zany science project!