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

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

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

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.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

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

This science fair project idea determines the most effective method of preserving food.

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.

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

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

This science fair project idea determines if the temperature of rubber effects how high it bounces.

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

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This science experiment tests if dog saliva can really help heal wounds.

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

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

This science fair project idea provides evidence that air is everywhere and takes up space.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

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

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

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