This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This science fair project idea examines which type of insulation holds in the most heat.

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

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

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

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

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Find out whether matte or shiny nail polish lasts longer.

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

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

In this project children practice the scientific method while playing with puffy paint.

This project examines whether people's taste perception is influenced by what they see.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Do you think heat can affect a plant's growth rate?

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

Find out which kind of bubble wrap fares best when put in impact.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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

This science project allows students to study the psychology of happiness.

This science fair project idea investigates how the shape of an object affects drag.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

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.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

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