Free science fair project idea examining how different types of water affect plant germination and growth.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.

Determine if gender affects the ability to identify different smells.

Research currently available fuel sources, and fuel manufacturing and processing techniques. Propose an alternative fuel source.

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

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Research what is known about Alzheimer's disease and its treatment, and then prepare a script for television to educate the public.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

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.

This science fair project idea discovers the principle of conservation of mass.

Determine how good we are at direct and indirect observation.

Cleaning can be a chore, but not with this sudsy experiment!

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

What colors can dogs see? Do they only have black and white vision, or can they see other colors too? Find out in this cool science experiment!

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

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

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

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

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

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

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

This science fair project investigates which of two learning modes most commonly used in school, visual and auditory, is better for information retention.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.