Create a colorful, informative display that illustrates the properties of blood cells. Prepare slides using samples of fresh raw beef or chicken bone marrow.

This science fair project idea explores discover whether mixing solutions of equal distances from neutral pH (7) will create a solution close to pH 7.

Learn about the anatomy of the autonomic nervous system and its relationship to the rest of the body.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

In this science fair experiment about recycling, demonstrate how the wax from a candle can be reused to make another candle.

In this science fair project, students create their own miniature salt flats at home.

This experiment will explore if magnetism has any effect on the regeneration abilities of flatworms.

This science fair project researches the most effective method to cut an onion and stay tear-free.

This science project has students study the idea of human beauty.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Devise an argument for or against the possibility of resurrectin extinct species through DNA manipulation. Analyze data, report findings.

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

Show your middle schooler how a quick whirl of spinach in the blender will reveal the cobwebby "stuff"--or DNA--of life!

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Help your child measure breezy weather in her environment by making a wind vane for kids, a simple version of the classic scientific measurement tool.

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

This science fair project idea explores the different properties & interactions of sugar molecules.

This fun elementary school science fair project idea helps students in designing an amusement park using their knowledge of forces and simple machines.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Find out which part of a flame burns wood the fastest and also if this is true for all types of flames such as candle-flame, burners, and lighters.

The objective of this science fair project is to observe the properties of friction and apply this knowledge to search for a near-frictionless surface.

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.