Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

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

Construct batteries that make electricity from fruits with this fun science fair project.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

Learn whether dark green and leafy veggies tend to have a higher Vitamin C content than lighter green varieties.

This science fair project idea teaches kids the different functions of a leaf.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

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?

Are red apples really sweeter than green apples? The objective of this science fair project is to test the theory with quantitative evidence.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Determine which metal has the highest rate of conductivity.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

High school kids learn about fruit fly ethology in this cool lab that determines fruit fly movement and behavior under different conditions. Check it out.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Get a fun high school physics science fair project idea one of the states of matter called plasma and the applications of this unique coil.

This science fair project idea focuses on the use a conductivity device to determine the ionic concentrations of hard water.

This science fair project idea demonstrates that plants give off water.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

The objective of this science project is to investigate why NASA has been using aerogel for the Stardust Project for collecting gas and dust from comets.

This science fair project idea researches the effects of acid rain on plant growth.

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

Can cells be frozen? This science fair project provides information to answer this question.