High School Science Projects (327 results)

Science Buddies' high school science projects are the perfect way for high school students to have fun exploring science, technology, engineering, and math (STEM). Our high school projects are written and tested by scientists and are specifically created for use by students in the high school grades. Students can choose to follow the science experiment as written or put their own spin on the project.

For a personalized list of science projects, high schoolers can use the Science Buddies Topic Selection Wizard. The wizard asks students to respond to a series of simple statements and then uses their answers to recommend age-appropriate projects that fit their interests.

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Science Fair Project Idea
Some molecules can be either left- or right-"handed." The left- and right-handed molecules have the same number and type of atoms, and their chemical structures look identical, but they are actually mirror images of each other. Many naturally occurring molecules have this property, called chirality. Chiral molecules can interact with polarized light in an interesting way—they rotate the plane of polarization. This chemistry science fair project describes how to make a homemade polarimeter… Read more
Chem_p073
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Time Required Average (6-10 days)
Prerequisites This is a "do-it-yourself" kind of science fair project. It may present challenges that will require some technical creativity. Some experience working with digital pictures and videos on a computer will be useful.
Material Availability To do this science fair project, you should already have the following materials and equipment: a laptop computer or other device with a flat-panel screen and a digital camera that takes short videos.
Cost Low ($20 - $50)
Safety Use caution when working with glass panes, as they can cut if they are broken.
Science Fair Project Idea
Maple syrup on pancakes, ripe bananas, and soft drinks are all foods that are tasty to us because of the sugar in them. But did you know there are different kinds of sugar? One food can have multiple kinds of sugar in it, and our bodies actually process the different types of sugars differently. In this science project, you will measure the concentration of two sugars—glucose and sucrose—in different foods, and investigate how sucrose is converted into glucose with the help… Read more
HumBio_p035
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability A Sugar Metabolism Kit containing most of the specialty supplies needed for this project is available from our partner .
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
You have probably heard about left-brain and right-brain differences in people. The left brain is supposed to be better at language, and organizing sequential actions, the right brain is supposed to be better at visualizing orientations in space, making and listening to music, and deciphering the emotions of others. Is there evidence for left/right brain specialization in other animals? This project examines tail-wagging in dogs. Does tail-wagging show any evidence of left/right brain… Read more
MamBio_p014
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Time Required Very Long (1+ months)
Prerequisites You must be comfortable working with dogs. You'll need a video camera, a tripod, a dog crate, and at least 10 different dogs to participate in the project.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Adult supervision required.
Science Fair Project Idea
On December 26, 2004, a magnitude 9.2 megathrust earthquake off the west coast of Sumatra, Indonesia unleashed a powerful tsunami that hit the coasts of 14 countries and caused the loss of over 200,000 lives. The devastation that the tsunami left in its wake was heartbreaking, and people across the world united to help the survivors. Tsunamis are a powerful force of nature that can change the features of a coastline and result in millions of dollars in economic loss, but can… Read more
OceanSci_p016
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
Do people treat someone differently based on his or her appearance? Specifically, how are their behaviors affected by the clothes a person wears? For instance, if somebody wears a formal suit, do you think others behave differently when interacting with that person compared to if he or she were wearing casual clothes, like blue jeans? In this science project, you will get to try and find out! Read more
Soc_p002
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Time Required Average (6-10 days)
Material Availability Readily available
Cost Low ($20 - $50)
Science Fair Project Idea
Mysteries and detective stories have been popular since the time of Sherlock Holmes. The solutions to these fictional cases often involve untangling seemingly contradictory evidence from eyewitnesses. This project studies one procedure used in the real-world process of eyewitness identification of criminal suspects: the lineup. How accurate are eyewitness identifications using various lineup methods? Read more
Soc_p006
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Time Required Average (6-10 days)
Material Availability Readily available
Cost Very Low (under $20)
Science Fair Project Idea
Have you ever wanted to analyze data from a NASA spacecraft? In this science project you will use data from NASA's MESSENGER mission to measure the diameter and calculate the depth of impact craters on Mercury. You will then analyze that data for relationships between a crater's depth and diameter. This is your chance to perform a science project as a NASA researcher would! Read more
Astro_p036
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Time Required Very Short (≤ 1 day)
Prerequisites Geometry: familiarity using sine, cosine, and tangent to solve right triangles
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
For this project, you'll use a baseball as a pendulum weight, studying the motion of the ball with and without spin. Wrap a rubber band around the ball, and tie a string to the rubber band. Fasten the string so that the ball hangs down and can swing freely. Mark a regular grid on cardboard, and place it directly beneath the ball to measure the motion. You can also time the oscillations with a stopwatch. Lift the ball along one of the grid axes, and let it go. Observe the motion and record… Read more
Sports_p022
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Time Required Short (2-5 days)
Science Fair Project Idea
Imagine that a biologist arrived at your big family reunion and had no idea who were sisters, cousins, aunts, uncles, etc., but tried to sort it out by how all of you look. Just based on how you look, would s/he be able to guess whether the kid standing next to you is your sister or your cousin? The biologist might be able to make some good guesses this way, but by using samples of your family's DNA, s/he could construct your whole family tree. In this project, you'll use a Web-based… Read more
Genom_p004
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Time Required Very Short (≤ 1 day)
Prerequisites You should have studied Life Science or Biology and also need good website navigation skills.
Material Availability None required
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Have you ever felt really frustrated? Maybe you were playing a video game and could not easily figure out a particularly challenging puzzle. Or maybe there was something you really wanted but you could not have it for some reason. However it has happened, what do you do when you get frustrated? What about other people — what kind of behaviors have you seen others display when they get frustrated? Do they cry, jump up and down screaming, just give up, or become aggressive? In this human… Read more
HumBeh_p051
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Time Required Very Long (1+ months)
Prerequisites You must have access to at least 30 middle-school aged test subjects. Try to get an even mix of boys and girls. You must also have access to a video camera.
Material Availability Specialty equipment is required. See the Materials and Equipment list for specific details.
Cost Average ($50 - $100)
Safety Wear safety goggles when hammering the nails into the piece of wood and when using the drill.
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