Leave your computer on 24/7. Will this lead to to more frequent crashes, freezes, and a slower processing speed? Find out in this science fair project idea.

This science fair project idea explores discover whether mixing solutions of equal distances from neutral pH (7) will create a solution close to pH 7.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

This science fair project investigates why the number of visible stars changes from place to place.

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

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

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

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

In this cool robotics project, construct a motorized robot with a sensor and put it through a maze test to find the number of errors it makes along the way.

This experiment evaluates if people of a specific gender or age more likely have an elevated number of taste buds, allowing them to taste what others cannot.

This science fair project idea discovers the average number on the Scoville scale that humans can endure in hot peppers before physical signs kick in.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

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.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This science fair project idea determines the most effective method of preserving food.

This science fair project idea studies the acidity of rain water and whether the acidity is the same on all rainy days or does it fluctuate.

This science fair project idea investigates whether plants can survive being frozen.

Science fair project that demonstrates the different phases of the moon by physically representing them with construction paper and a shoebox

In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

This science fair project idea investigates the relationship between memory and age.

This science fair project idea determines how quickly germs and bacteria spread.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

In this math and science activity, help your middleschooler learn about proportion and measurement with just her shadow and a tape measure!

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.

Explore the effect of wind speed on the burning rate of a candle.