In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Give your budding young observers a chance to discover simple machines at use in their own home.

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

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

This science fair project idea experiments with spinning color wheels and optical illusions.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

In this science fair project you will make a model of a cell membrane using very simple material.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Learn all about balance and motion as your child designs a corn maze!

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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

This Valentine's Day, pair up science and crafting with this simple crystal formation project that's sure to bring a little love into your home.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.