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

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

This science fair project idea explores whether talking to a plant will help it grow.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

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

This science fair project idea determines what household items are good conductors of electricity.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

Find out whether putting something on top of a plant will inhibit its growth.

This science fair project idea explores the different properties & interactions of sugar molecules.

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

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

In this design challenge, your child will make a bottle rocket using typical household items.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

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

In this fun experiment, we'll find out how color affects heat absorption!