This science fair project idea determines whether eating before or after exercise is more beneficial to health and performance.

This science fair project researches the most effective method to cut an onion and stay tear-free.

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 identifies the differences between soils from different environments and attempts to figure out why those differences exist.

In this science fair project, students investigate how different colors influence appetite.

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

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

This cool physics demo illustrates the simple harmonic motion of a pendulum while teaching kids the important concepts of potential and kinetic energy.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

Get a cool science project idea on a photovoltaic cell and explore the various factors that affect the energy output of the photovoltaic cell.

Check out this fun science fair project idea to explore the process of diffusion in a cell and learn the difference between osmosis and diffusion.

This science project challenges students to study the salt content in tap water and learn about electrochemistry.

This fun science fair project for 8th grade demonstrates what Kepler's 3rd law predicts about a planet's orbital period and its distance from the sun.

The objective of this science fair project is to observe the properties of friction and apply this knowledge to search for a near-frictionless surface.

This science fair project idea compares the cuteness reaction between genders.

Want to give your teen some insight into the scientific method and get the house cleaned? This activity promises both!

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

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

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

This science fair project determines whether the types of plants growing in a Pacific Northwest rain forest environment are influenced by the soil acidity.

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

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

This science fair project idea assesses the effect of music on work performance.

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.