This science fair project idea determines which method of hand cleansing is the most effective.

This science fair project teaches students about wilting and browning of salad greens.

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

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

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

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

The concept of metamorphosis is fascinating to children of all ages. Help your child's creativity take flight as she makes her very own butterfly life cycle.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

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.

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.

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

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

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

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.

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.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

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

Make a spring collage with your child to get them outside and those creative juices flowing!

Help your child celebrate the summer and the sun by making a sandy seascape.

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

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

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

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

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

Make all-natural dye from vegetables to create gorgeous homemade play-silks!

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.