The Free Science Fair
Projects Network

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Battery Power For grades 1 thru 4 Category: Chemistry Hypothesis: More expensive batteries will last longer. Duracell will last the longest. Primary Materials Used: Wires, Stop Watch, Light Bulbs, Several Different Kinds of Batteries, Battery Holder, Optional: High Speed Motor Fans, Jumper Test Alligator Clips Click Here for more details about the "Battery Power" science fair project.

Does Dog Saliva Kill Bacteria? For grades 5 thru 9 Category: Chemistry Hypothesis: Dog Saliva will be effective at killing bacteria. Primary Materials Used: Saliva from Three Dogs, Staphylococcus Epidermis Bacteria, Petri Dishes, Filter Paper, Nutrient Agar, Sterile Tweezers, Sterile Scissors, Sterile Cotton Swabs, Sterile Eyedroppers, Four Cups, Paper Towels, Protective Gloves, Bleach Click Here for more details about the "Does Dog Saliva Kill Bacteria?" science fair project.

The Effect of Salt on the Boiling Temperature of Water For grades 1 thru 5 Category: Chemistry Hypothesis: Adding table salt to water will cause the water to boil at a higher temperature. Primary Materials Used: Table Salt, Distilled Water, 2 Quart Cooking Pot, Measuring Cup, Measuring Spoons, Thermometer Click Here for more details about the "The Effect of Salt on the Boiling Temperature of Water" science fair project.

What’s in Your Milk? For grades 8 thru 12 Category: Chemistry Hypothesis: Unpasteurized samples of different types of milk will develop more bacteria than pasteurized samples. Primary Materials Used: Thermometers, Pressure Steam Sterilizer, Beaker, Samples of Goat’s, Cow’s, Sheep’s and Human Breast Milk, Stopwatch, Plastic Screw Cap Test Tubes, Double Boiler, Test Tube Tongs, Magnetic Agitator, Different types of Agar, Burner, 2 Erlenmeyer Flasks with Screw-Top Stoppers, Pipets, Petri Dishes, Ethanol, Incubator, Hot Plate Click Here for more details about the "What’s in Your Milk?" science fair project.

Which Contact Lens Solution Will Sterilize Bacteria the Best? For grades 5 thru 9 Category: Chemistry Hypothesis: Generic contact lens cleaning solutions will sterilize the same amount of bacteria as the brand names because generic brand names are made up of the same type of materials as brand names. Primary Materials Used: Various Contact Lens Solutions (CVS Multi-Purpose, Solo-Care Multi-Purpose, Complete Moisture Multi-Purpose, Renu Multi-purpose), Staphylococcus Epidermis, Streptococcus Salivarius, Petri Dishes, Filter Paper, Agar, Bleach Click Here for more details about the "Which Contact Lens Solution Will Sterilize Bacteria the Best?" science fair project.