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.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

Homemade Halloween treats make great party foods for an All Hallow's Eve get together. These four homemade Halloween treats are scary-good.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

This study observes plants, insects and an animal living in proximity to a known source of EMF.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

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.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

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

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

Instead of loading up on mayonnaise based potato salad, your child can whip up something healthier: German potato salad!

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

This science fair project explores how salt and sugar affect the melting rate of ice in water.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.