Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

Culverts transport seeds away from their original location to different places. This science project examines the effect of culverts on plant growth in streams.

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

This project concerns activity happening millions of miles away, on the sun.

Science fair project that determines whether mass and weight are the same or different.

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

This science fair project idea examines whether people can decode scrambled messages.

This science fair project idea determines whether the diet and taste preferences of humans relate to their personality.

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

This science fair project idea provides evidence that air is everywhere and takes up space.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

The objective of this experiment is to find out if cooked beans grow faster, if at all, than uncooked beans.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

In this science fair project you will make a model of a cell membrane using very simple material.

This experiment evaluates if the lighting in a room affects the speed at which test subjects perform mental tasks.

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

Test ability to distinguish between natural and artificial aromatherapy oils. Select fragrance, natural and synthetic sample. Volunteers state preference.

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 science fair project idea explores if objects dropped from a high distance will equal a greater impact force than the object dropped from a low distance.

This project will explore whether people are emotionally susceptible to suggestions of both humor and sorrow.

This science fair project idea explores discover whether there are any patterns or trends in the memories between different genders.

Check out this cool science fair project idea to explore the relationship between pulse rate and blood pressure in healthy people.

Research active ingredients in anti-aging creams. Test skin creams on volunteers, document the effectiveness of the creams with before an after photographs.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

Determines the extent that high school GPA predicts future income. Survey volunteers, divide GPA into 5 categories, compare income levels with GPA

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