Help your 4th grade child work on understanding place values of digits in decimal numbers with this fun activity.

Here's an activity that will get your child's attention with a back-to-school shopping spree. He'll use decimal skills to add, subtract, multiply, and divide!

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This decimal game is a great way to help your child get familiar with how decimal values work.

Find out whether packaged seeds actually do expire in this new science fair project idea.

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

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

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

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

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

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

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.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

Your first grader will gain an understanding of time management as your holiday tasks become manageable, with this to-do list reinvented as an advent calendar!

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

This science fair project examines how seeds hitchhike on animals and clothing.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

Engage your children with this fun fall activity that integrates math and science. First, your child will excavate to find leaves. Next, they'll examine them to determine the colors. Then, your child will graph their findings.

As your child heads back to school this fall, dust off those elementary math skills with our creative calendar activity!

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

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

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.