Check out this fun science project idea to measure the amount of vitamin C in ripe, half-ripe, unripe and stored oranges.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

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

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

Research what is known about Alzheimer's disease and its treatment, and then prepare a script for television to educate the public.

Melt the ice, but save the lawn. The objective of this science fair project is to explore the effects of different substances on melting ice.

Use a fish tank to simulate a pond! This science fair project explores the relationship between acid rain and the dissolved oxygen concentration of water.

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

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Science fair project that determines what neurons are, what they do and compiles this vital information in an illustrated book.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Check out this cool science fair project idea to explore short and long term memory and whether there is gender differences in memory.

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

This science fair project idea studies the differences in gender perception between people.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

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

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.