What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This experiment investigates whether the Ranschburg Effect is observed more frequently in older or younger adults.

This science fair project examines the different composition of fungi and plants.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?

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

This science fair project teaches students about wilting and browning of salad greens.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

This science fair project idea investigates how the shape of an object affects drag.

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

This science fair project investigates what type of cookie sheet bakes the best cookies.

This science fair project idea studies whether eating a hearty breakfast before and exam will get them better test scores.

We're all familiar with the idea that some songs âget stuck in your head.â This experiment explores the validity of that claim.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

Take a dive into the candy jar with this yummy science experiment.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

This project involves the development of a website using free software online to promote the value of science.

This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.

Research currently available fuel sources, and fuel manufacturing and processing techniques. Propose an alternative fuel source.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.