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High School Science Fair Projects

Need a science fair project that's fun, engaging, and appropriately rigorous for a high school science fair? Education.com has assembled a rich collection of high school science fair projects and high school science fair project ideas written by our team of professional scientists, science teachers, and educational consultants. We offer free high school science experiments on every science fair topic, including physics, chemistry, biology, engineering, and even psychology. Check the boxes in the sidebar to filter your results, or use the search bar to find a winning idea for your upcoming science fair. Hundreds of good science fair projects are only a click away.

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Showing 1 to 15 of 25
Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.
High School
Earth & Space Science
The purpose of this project is to examine the sun's highest altitude in the sky during the day to determine if it is exactly halfway between sunrise and sunset.
High School
Earth & Space Science
The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.
High School
Earth & Space Science
This experiment will explore the possibility of a connection between lunar cycles and how humans are affected.
High School
Earth & Space Science
Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.
High School
Earth & Space Science
This science project examines the thermal properties of several major greenhouse gases.
High School
Earth & Space Science
Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?
Earth & Space Science
Sixth Grade
In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.
High School
Earth & Space Science
Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.
Earth & Space Science
Fourth Grade
This science fair project explores different types of endangered frogs, and why some are endangered while others are not.
Earth & Space Science
Ninth Grade
This science fair project challenges students to research and interact with the animals and plants that live in tide pools and test a practical use of tidepools
High School
Oceans
Develop a new system for predicting geographic changes. Demonstrate the nature of geographic change. Make logical predictions.
High School
Earth & Space Science
Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.
High School
Earth & Space Science
Measure soil temperature as a function of depth in the ground, and look for evidence of global warming responses in data.
High School
Earth & Space Science
Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.
High School
Earth & Space Science

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