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High School Science Fair Project Ideas

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

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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?
Eighth Grade
Ninth Grade
Analyze temperature and precipitation data to determine whether current weather conditions are outside the historical norm.
What is Climate Change?
High School
Middle School
This science fair project idea teaches Gauss' law and its implications and calculates and comprehends the flow of electrical charges in a Faraday Cage.
How Can You Stop Electromagnetic Radiation From Penetrating a certain area?
High School
Physics
This experiment evaluates whether there is a relationship between grade point average (GPA) and dating status.
Investigating the Link Between Relationships and Academic Performance
High School
Ninth Grade
Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.
Does Whitening Toothpaste Work?
High School
Middle School
Where does bacteria exist most commonly? The goal of this project is to examine the presence of bacteria in public spaces.
Germ Jungle: What Public Spaces Have the Most Bacteria?
High School
Middle School
Chlorophyll is present in all green leaves. What about leaves that have turned brown? Is Chlorophyll still present in a leaf that has turned brown?
Do Fallen, Brown Leaves Still Have Chlorophyll?
High School
Middle School
This experiment explores how microwave radiation affects fungi, bacteria, and plant life.
How Does Microwave Radiation Affect Different Organisms?
High School
Ninth Grade
In this science fair project, students evaluate if astrological signs provide clues about people's personalities.
Does Astrology Work? A Test
High School
Ninth Grade
Students identify variables that affect the duration of high school romances and analyze data to predict the success or failure of ongoing relationships.
Using Statistics to Predict Relationship Success or Failure
High School
Ninth Grade
This experiment evaluates whether frequent texters have better finger dexterity compared to people that rarely use text messaging.
Does Texting Enhance Finger Dexterity?
High School
Ninth Grade
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
High School
Ninth Grade
Does wind speed vary at ground level in comparison to 30 or 40 feet off the ground? Test your knowledge and you decide!
Flying in the Wind: Is the Wind Stronger Above the Ground?
High School
Middle School
This high school science fair project investigates if small changes in your diet alter the pH of your saliva.
How Does Diet Affect Your pH?
High School
Life Science
Determine which metal has the highest rate of conductivity.
Which Metal Should a Pan Be Made Of?
High School
Physics

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