This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

In this science project, the center of gravity is explored.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

In this CD hovercraft science project, students will construct their own DIY hovercraft.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

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

This science fair project will help students learn about non-vascular plants, such as mosses.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

This science fair project idea deals with the qualities of shade on a sunny day.

Start your toy engines -- this is going to be a fast and friction-filled race!

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

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

Word color association is just a fancy way to talk about the way we connect colors with words.

Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

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

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.