Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

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.

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

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project idea determines which method of hand cleansing is the most effective.

Make a backbone model to explore human anatomy and life science.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Here's a science activity to help your child investigate how seeds are designed to travel.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

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.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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

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.

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

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

Test your friends to find out if you can replicate the placebo effect's incredible results.

This project determines what category of person is most likely to be ticklish.