It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

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

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Put an oatmeal box, a flashlight, and some construction paper together and you have the makings of an incredibly cool bedroom planetarium!

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

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

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Who knew that nature could get so crafty? Show your kindergartener how to collect and morph pinecones into a whole team of personalized pinecone people.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

This science fair project idea explores substances that cause a bubble to last longer.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

Children learn the six parts of a plant...but do they really understand? Try this plant-themed meal plan to bring school science into the home.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

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!

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.