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This science fair project idea investigates whether rocks containing geodes can be determined from the outside.

Choose a timeline to live without technology. Keep a journal of all the issues encountered. What are the benefits and cons of modern technology?

This science fair project idea explores how length affects the weight a bridge can hold.

The objective of this experiment is to conduct a ganzfeld experiment and determine if extrasensory perception (ESP) can be observed.

This experiment evaluates whether motivational music can improve athletic performance.

This experiment explores the most common colors that appear among a sample of crossbred guppies.

Make a backbone model to explore human anatomy and life science.

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

This science fair project idea focuses on the use a conductivity device to determine the ionic concentrations of hard water.

The objective of this science project is to determine whether a sweet tooth is most likely an inherited trait or a learned behavior.

Science fair project that helps visualize how the human brain functions by constructing a model of a brain.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

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

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

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

Determine if each hemisphere specializes in dealing with specific functions. Include illustrations of the brain, it hemispheres.

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

Demonstrate Newton's laws of motion by examining the relationship between mass, force, and acceleration during free-fall.

Science fair project that uses iodine solution to demonstrate how starch is turned into sugar when it is chewed in the mouth.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Learn how to relight a candle by lighting the vaporized wax in the smoke, and test how various kind of wax and candle brands relight differently.

This experiment will evaluate if the environments that people work in affect their speed and accuracy in performing mental tasks.

This science fair project examines how seeds hitchhike on animals and clothing.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

This experiment evaluates if the temperature of the environment that you work in affects your ability to perform mental tasks.

This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.