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

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

Determine if picking up fallen food in 5 seconds or less prevents the transfer of bacteria from the ground.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

This experiment explores whether music affects the growth of bacteria and could help figure out better ways to process sewage and other microbe-assisted duties.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

This bread mold experiment will help your child learn about mold, and he'll develop important hypothesis-making and experiment-designing skills.

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

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

Explore the wattage of microwaves in relevance to cooking time.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Determine whether the application of Febreeze will lower the bacterial count.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Explore the effect of wind speed on the burning rate of a candle.

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

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

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

This science fair project idea explores whether a person's ability to see under very dim lighting conditions diminishes with age.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

This science fair project idea investigates food preference of birds.