Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Learn whether writing things down really makes things easier to remember.

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

This science fair project idea investigates if fats add to the flavor of food.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

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

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Use sticks and stones to create create an outdoor version of tic-tac-toe!

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

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.

Use simple materials to build a "worm hotel" with your kindergarten soil scientist...and see what worms really do all day.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Teach your child to dye eggs with natural ingredients from the grocery store. From pink to gold, these eggs are perfect for hiding, hunting or simply munching.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

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

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

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

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.