This science fair project idea investigates the difference in reaction times between boys and girls.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

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

This science fair project idea explores whether color affects a person's emotional state.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

The purpose of this science fair project is to build a basic radio.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

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

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

This science fair project idea investigates if fats add to the flavor of food.

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

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

This science fair project idea examines the reason boats are shaped and engineered.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.