This science project involves comparing the relative effectiveness of salt, pepper and dehydration in food preservation.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

This experiment explores how listening in to a one-sided conversation affects concentration.

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

Determine the efficiency of multi-tasking by comparing how long it takes students to complete different tasks. Collate data, complete Summary Chart.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Test out various brands of permanent markers to see which one is least water soluble.

In almost every preschool classroom is a sensory table. Learn how to make one at home!

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

Science fair project that determines whether moths are attracted to one color of light more than others.

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

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

In this science fair experiment, kids will use the acid test to discover how to tell one mineral from another.

Science fair project which identifies the most effective insulator that you could use to make a winter coat by comparing how well cloth and cotton trap heat.

This project explores how well couples convey complex emotions such as envy and pride to one another solely through the sense of touch.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.