Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Do different types of oil mix or stack? Find out in this science fair project idea!

In this science fair project you will make a model of a cell membrane using very simple material.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This project compares the strength of one, two, and three-ply toilet paper.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

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

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

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

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

How powerful is the reaction between baking soda and vinegar? Find out here!

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

This science fair project examines how seeds hitchhike on animals and clothing.

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

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.