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This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

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.

This snowman's not abominable, he's adorable! Your child can bring her very own snowman to life while practicing how to create texture.

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

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

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.

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 recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

The fish most kids see is usually filleted, and it's hard to see how it came from a lake or sea. This cool gyotaku activity blends life science with art!

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

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.

Teach your child about healthy foods and how to make a meal that is good for them with this fun activity that you both can do together.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!