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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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This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.
Intuitive Elements
High School
Eighth Grade
Determine which material produces the strongest static charge.
The Material With the Most Static Electricity
High School
Middle School
Determine whether people can actually taste the difference between âhealthyâ cookies and the traditional version.
Do Cookies Taste “Healthy”?
High School
Middle School
Find out which part of a flame burns wood the fastest and also if this is true for all types of flames such as candle-flame, burners, and lighters.
Which Part of the Flame is the Hottest?
High School
Middle School
Study how we perceive color by exploring optical illusions such as pointillism, digital images, and Ishihara tests.
Exploring Optical Illusions: Color & Pointillism
Ninth Grade
Tenth Grade
Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.
Mass, Volume and Density
Tenth Grade
Eleventh Grade
Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.
Carbon Dioxide Concentrations
Seventh Grade
Eighth Grade
Learn whether dark green and leafy veggies tend to have a higher Vitamin C content than lighter green varieties.
Are Dark Green, Leafy Veggies Higher in Vitamin C Content Than Their Lighter-Colored Counterparts?
Seventh Grade
Eighth Grade
Check out this fun high school science fair project idea to investigate how the cell membrane regulates what moves into and out of cells.
Build a Model of the Cell Membrane
High School
Medium
This experiment will determine if motion parallax is an accurate measure of distance for small, faraway objects.
Is Parallax an Accurate Measure of Distance?
High School
Astronomy
This experiment investigates whether the primacy effect is observed more frequently in specific populations of people.
Evaluating the Primacy Effect
High School
Ninth Grade
This science fair project compares the abilities of men and women to understand subtle communication through body language.
Gender Differences in Body Language Interpretation
High School
Psychology and Sociology
In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.
Mathematical Modeling of Bacterial Growth
High School
Applied Science
This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.
Are People Taller in the Morning?
High School
Middle School
Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.
Which Starch Plant Produces the Most Fuel?
High School
Botany

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