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This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

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

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Make your own greenhouse - out of a balloon! Your child will learn how greenhouses work as they plant radish seeds and watch them grow.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

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

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

Learn how different types of soil affect how animal tracks form in this experiment!

This plaster fossil activity is a fun supplement to preschool science. Use plaster to make imprints of your child's handprints, footprints and other objects!

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

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.

Teach your child about recycling and gardening as she re-uses an empty plastic milk gallon jug to craft a swan-shaped plant container!

Make "fossils" with your child to hide in the sandbox or at the park or the beach, to help your child explore his archaeological side.

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!