Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Check out this fun science project idea on ecological succession and learn the main difference between primary and secondary succession.

This science fair project determines how age affects the speed that someone can change the focus of their eyes between near and far sightedness.

Science fair project that demonstrate how abrasions are formed on rocks in nature and the variations between types of rocks.

Scavenger Hunt! Check out this fun science fair project idea to explore the difference between opaque, translucent, and transparent objects around your house.

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

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Science fair project that determines the correlation between the ability of selected materials to conduct heat and a material's density.

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

The projects describes the correlation between Gravel Run and Centreville Landing in terms of pH, dissolved oxygen, turbidity, and temperature.

This project explores if people more easily distinguish between faces of people of their own race or ethnicity compared to those of other races or ethnicities.

This experiment will test whether people are better auditory or visual learners and if there is a link between gender and either of these learning types.

Check out this fun science fair project idea to explore the process of diffusion in a cell and learn the difference between osmosis and diffusion.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.

The science project fair idea explores the interaction between your nose, mouth, and brain when tasting a new food or drink.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

Determine the effect of homework on academic performance. Collect grade info at the end of a semester, determine correlation between grades, amount of homework

Test for a correlation between perceived color and heart rate. Using a stethoscope and stop watch, measure the heart rate (beats per minute) of volunteers.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

More height, more steep, more speed! This science project investigates whether there is a correlation between the height of the roller coaster and the slope.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.