Determine whether the application of Febreeze will lower the bacterial count.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

In this project, you will observe and record changes in sunspots over two weeks.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

Fibonacci sequences have been observed throughout nature, like in leaves and flowers. In this project, students find examples of the Fibonacci sequence.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

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

This science fair project idea explores the fastest average speed a human can talk.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Discover whether ants are more attracted to natural cane sugar or artificial sweeteners.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

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

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Determine how effective animal camouflage is by simulating it in an indoor and outdoor setting.

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project idea focuses on the production of oxygen by plants during the photosynthesis process.

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

High school kids learn about fruit fly ethology in this cool lab that determines fruit fly movement and behavior under different conditions. Check it out.

Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!

Science fair project that examines the effects of soap on the surface tension of water. How does soap affect the surface tension of water?

This experiment determines the distribution of darts around a bulls eye to simulate the probability of an electron's location in its own cloud of electrons.

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

Science fair project that examines the biodiversity of ant populations in various locations.