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Ninth Grade Physical Science - 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 Physical Science
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Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).
Can You Cook Using Only Sunlight?
Ninth Grade
Physics
This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.
Which Decaffeinated Tea Type Contains the Least Amount of Caffeine?
Ninth Grade
Physical Science
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
Physical Science
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
Physical Science
This science fair project examines the different composition of fungi and plants.
Are Fungi Plants?
Ninth Grade
Chemistry
In this science fair experiment, high school students determine if all proteins denature at the same temperature.
Denaturing Proteins
Ninth Grade
Physical Science
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
This experiment explores how microwave radiation affects fungi, bacteria, and plant life.
How Does Microwave Radiation Affect Different Organisms?
Ninth Grade
Physical Science
This science fair project measures two teas to see if there a difference in infusion concentration based on the way the teas are packaged.
How Does Loose Rolled Tea Compare to Tea in Teabags?
Ninth Grade
Physical Science
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
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
Study how we perceive color by exploring optical illusions such as pointillism, digital images, and Ishihara tests.
Exploring Optical Illusions: Color & Pointillism
Ninth Grade
Physical Science
In this experiment, you will find out how human error can cause faults in any science task. This includes experiments conducted by famous scientists also.
The Science of Human Error
Ninth Grade
Physical Science
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
In this experiment, you will be making your own paper flashlight by conducting electricty with graphite.
Build a Paper Circuit
Ninth Grade
Physical Science

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