Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Discover the interactions of synthetic dyes and natural dyes on natural and artificially-made fabrics.

Should you use âFITâ Fruit and Veggie Wash or plain water to wash your produce? Find out in this science fair project idea.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

This science fair project idea demonstrates how our fingers prune when in water.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Bring the fun of gardening indoors! By stuffing a simple pair of pantyhose with a few grass seeds on top, your child can grow her very own plant pet.

Check out this cool science fair project idea on spectrum spinners and investigate how certain color combination can produce other colors.

In this cool elementary school science fair project idea make a model to learn what happens to the Earth's surface when ice moves over land.

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

Consult astronomers for opinions and advice. Devise a mathematical argument regarding the probability of other planets supporting extra-terrestrial life.

Find out whether matching resonant frequencies can cause objects to shatter.

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

This science fair project investigates why the number of visible stars changes from place to place.

Research fruits and their ripening stages, follow and document the different stages. Analyze what causes fruit to continue ripening after being picked.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

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

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.

Find out whether matte or shiny nail polish lasts longer.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

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

This experiment will explore whether adding different substances to a gel affects its strength.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

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