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.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

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

This science fair project idea examines the reason boats are shaped and engineered.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

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

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

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

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.