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Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This free science fair project explores the "dirty" relationship between the presence of organic material in soil and water absorbency.

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

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

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Examine the influence of the phase of the moon on moisture capillarity in garden soil. Measure and record the depth at which water is first detected.

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

Calculate the mass of the Earth using the sidereal and calendar period of the Moon and Newton's Law of Universal Gravitation in this physics science project!

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

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

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

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

Science fair project that demonstrates that rotting food attracts insects that lay eggs on it.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Science fair project that tests whether cats have a preference for organic food.

Discover which method for odor removal words the best for stifling refrigerator odors.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Time to look at our faces! Are they symmetrical or asymmetrical? Find out in this science fair project idea.

This experiment explores the question of whether age and/or gender play a role in people's ability to remember dreams.

This science fair project idea examines the differences between bottle water, filtered water, and tap water.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

Here is a kindergarten activity that blends art and science by using magnets, paint, and objects found around the house to create a picture.

This science fair project explores whether musicians are better than non-musicians at distinguishing and understanding speech in noisy environments

Looking for a project on fossils? Check out this fun science fair project idea to understand the process of coal formation and fossils part in that formation.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.