Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

The scientific purpose of this experiment is to investigate which material is the best packaging for fragile items during shipping.

This social science experiment endeavors to determine whether certain types of animals provide greater physical and mental health benefits to their owners.

This science fair project idea explores whether dogs do look like their owners.

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

This experiment evaluates if personality influences whether a person prefers dogs or cats.

Determine the growth rates of different types of human hair. Ask volunteers to not cut their hair until the end of experiment. Measure hair length.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Find out whether putting something on top of a plant will inhibit its growth.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

This science fair project determines how oil affects a bird’s waterproofing.

This project examines which style of central-air system filter traps the most particles from the air.

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

The project determines which type of birds prefer which type of birdseed.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This science fair project idea determines how your body responds to allergies.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

Explore if planting seeds in a certain direction will affect how fast it germinates.

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

In this experiment we will be determining whether birds prefer certain colors of seed.

This science fair project idea teaches what wildlife rehabilitators do and about the process of wildlife rehabilitation.

This science fair project idea studies past and current fads and trends.

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

Science fair project that demonstrates the principle of conservation of mass by conducting a chemical reaction inside a sealed Ziploc bag.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

How does light affect plant growth? Do different colors of light work better than others? Find out in this classic science fair project idea.

This science project examines the thermal properties of several major greenhouse gases.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

In this experiment, you will find out how human error can cause faults in any science task. This includes experiments conducted by famous scientists also.