Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

This project examines the affect of temperature on viscosity and surface tension of different liquids.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

Looking for a project on fossils? Check out this fun science fair project idea to understand the process of coal formation and fossils part in that formation.

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

This project compares the national anthems of several different countries to determine if there is a correlation between tempo and a country's latitude.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Determine the effect of homework on academic performance. Collect grade info at the end of a semester, determine correlation between grades, amount of homework

The Galileo inclined plane physics experiment was one of the first ways scientists calculated acceleration due to gravity. Do it yourself in this project!

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

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

This slightly messy, but tons-of-fun tactile activity will cement the idea of the land and water as pictured on maps in your young learner's mind.

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

Test of the effect of exercise on rote memory. Prepare a single list of 40 randomly chosen words. Have volunteers recall as many words as possible.

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

Science fair project that determines the effect of concentrated mental effort on physical performance levels.

Melt the ice, but save the lawn. The objective of this science fair project is to explore the effects of different substances on melting ice.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This project will examine the relationship between wind velocity and direction and the distance a baseball travels.

Wild-type and GAPDH mutant Caenorhabditis elegans were used as an example of how glucose or sugar affects the lifespan of humans.

Leave your computer on 24/7. Will this lead to to more frequent crashes, freezes, and a slower processing speed? Find out in this science fair project idea.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

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

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

This science fair project idea measures physical dexterity as a function of temperature.

Determine the effect of reading aloud on memory skills. Prepare a list of randomly chosen words, ask volunteers to recall as many as possible from the list.

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