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Science Fair Project Ideas

Great selection of ninth grade science fair project ideas. These science fair projects can help you find ninth grade level ideas for your science fair.

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Ninth Grade Chemistry Weather and Climate
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In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.
When Air Masses Collide
Ninth Grade
Weather and Climate
Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).
Can You Cook Using Only Sunlight?
Ninth Grade
Weather and Climate
This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.
Natural Herbicide vs. Commercial Herbicide
Ninth Grade
Chemistry
Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.
How Much Oxygen is in the Air?
Ninth Grade
Chemistry
In this science fair experiment, high school students determine if all proteins denature at the same temperature.
Denaturing Proteins
Ninth Grade
Chemistry
In this science fair project caffeine will be extracted from Gunpowder Green Tea, illustrating the isolation of a naturally occurring product from a plant.
How to Extract Caffeine from Gunpowder Green Tea
Ninth Grade
Chemistry
Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.
Does Tea Stain your Teeth?
Ninth Grade
Chemistry
Science fair project which tests which antacids are most potent by measuring how well they neutralize the acid in lemon juice.
Antacid Potentcy
Ninth Grade
Chemistry
This science fair project examines the different composition of fungi and plants.
Are Fungi Plants?
Ninth Grade
Chemistry
Thermometers are how we measure temperature, and we've all heard the terms 'centigrade' and 'Fahrenheit' tossed around, but what do they really mean?
Centigrade and Fahrenheit: What Do They Really Mean?
Ninth Grade
Weather and Climate
see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?
Do All Liquids Evaporate At The Same Rate?
Ninth Grade
Chemistry
Science fair project that uses distillation to convert salt water into fresh water.
Distilling Water
Ninth Grade
Chemistry
This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.
Intuitive Elements
Ninth Grade
Chemistry
In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.
A Demonstration of Half-Life
Ninth Grade
Chemistry
Many substances are compounds of different elements. This experiment combines iodine and zinc to make zinc iodide.
Combining Iodine and Zinc
Ninth Grade
Chemistry

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