This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

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

Devise list of randomly chosen words, test how many words volunteers can remember. Compare results of adults and children. Which have better memories?

This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.

This science fair project idea compares biodiversity between drops of water.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

Does fear cause the same physiologic responses in men and women? This experiment measures people's blood pressure and heart rate while watching a scary movie.

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

This science fair project studies whether DSLR and Point-and-Shoot cameras work the same way under all conditions.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

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

Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

If you hold a fire up to a balloon, it pops instantly. What if you could prevent this from happening? In this project, we do just that.

Learn about how sugar fermentation and growing yeast in this easy science project! Yeast is a eukaryotic microbe that puts the fun in fungus!

Construct and experiment with a periscope using reflected light rays to gather an image.

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

This science experiment explores why leaves change color in the fall and the role of photosynthesis in leaf coloration.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

The goal of this fun science experiment is to explore the limitations of sight and learn working of the human eyes.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Make a list of items that need repurposing such as e-waste, batteries and mattresses. Invent your own original repurposed design.

Study structure of the lens found in the human eye and determine whether it is concave or convex. Prepare a ray diagram, formulate hypothesis.