In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Help your kindergarten or first grade child use his creativity to make a beautiful magnetic patterned structure while discovering the wonders of magnets.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

Get a better understanding of water content by dehydrating carrots.

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

This science fair project idea investigates if webbed feet help a duck (and others) swim.

The project investigates how water and movement affects erosion.

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.

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

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

People have favorite flavors, but what about ants? Which ant food is the most popular?

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

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

Your child can create his own texture tree, experimenting with design during the process. The result will be a beautiful addition to your holiday decorations

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.