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This science fair project idea focuses on the use a conductivity device to determine the ionic concentrations of hard water.

Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.

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

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

Determine if each hemisphere specializes in dealing with specific functions. Include illustrations of the brain, it hemispheres.

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 demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

Explore the negative and positive consequences of stereotypes.

Science fair project that examines oxidation, reduction and chemical indicators by testing for the presence of the iodide in salt.

Study the anatomy of the brain and the functions of the corpus callosum. Research split brain surgery and its impact on advances in neuroscience.

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

The goal of this science fair project is to demonstrate magnetic forces of attraction and repulsion using a magnet and everyday objects.

Learn the anatomical and physiological differences between central and peripheral visual systems.

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

Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.

In this science fair project on the relationship between distance and time, kids explore the behavior of gravitational acceleration through direct observation.

The goal of this science fair project is to determine which cheese grows mold the fastest: Vermont Cheddar, American, Brie, or Camembert?

This cool electricity project teaches kids how connecting batteries in series vs. parallel circuits can contribute to different levels of voltage and amperage.

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.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

This science fair project idea focuses on two classes of sugars monosaccharides (fructose) and disaccharides (sucrose or table sugar).

Use a dichotomous key to identify plants or animals.

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 project is to examine the factors that affect the dispersion of oil in water, including water agitation.