Physics Science Projects (77 results)

Physics is the study of matter — what is it made of? How does it behave? What laws or equations describe it? From subatomic particles, to the Big Bang, modern physicists study matter at a tremendous range of scales. There's a whole lot of interesting physics at the human scale, too. If physics interests you our wide collection of physics projects is sure to have an experiment that excites you.

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Science Buddies Original
Science Fair Project Idea
Did you know that sunlight can actually be separated into the colors of the rainbow? And the light of different colors can be added together to make white light or new colors. This is an area of study where art and science overlap. In this science fair project, you will explore this area by drawing or painting "pie slices" onto a white circle and then combining them to make a new color by spinning the wheel using an electric drill. Read more
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Time Required Very Short (≤ 1 day)
Tinkering
Prerequisites None
Material Availability You will need a cordless electric drill and a sanding disk for this science fair project.
Cost Average ($50 - $100)
Safety Adult supervision is required, particularly to help with the power tools. Always wear safety goggles when working with power tools.
Science Buddies Original
Science Fair Project Idea
Did you know that you can use magnets to build a train that floats above its tracks? In this project, you will also use magnets to make the train stop, preventing it from crashing into the end of the track. Will adding more magnets help the train stop sooner? Read more
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- Less Details
Time Required Very Short (≤ 1 day)
Tinkering
Prerequisites Attention to detail and patience are needed for this project. After building, you will need to make adjustments to get it working perfectly. The train floats above the tracks well once everything is lined up carefully.
Material Availability Specialty materials required. See Materials section.
Cost Low ($20 - $50)
Safety Keep magnets away from small children and pets who might swallow them.
Science Buddies Original
Science Fair Project Idea
Standing on a balcony near the top of the Tower of Pisa in Italy, a young scientist dropped two balls into the crowd below. The scientist, young Galileo, was not trying to knock his fellow professors on the head, but was trying to prove his theory that all objects fall to earth at the same rate, regardless of their mass. Was Galileo's theory correct? In this science project, you will get to test it out for yourself! Look out below! Read more
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- Less Details
Time Required Very Short (≤ 1 day)
Tinkering
Prerequisites Basic understanding of gravity
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision required when using ladder
Science Buddies Original
Science Fair Project Idea
Physicists sometimes study matter under extreme conditions. For example, think of the emptiness of interstellar space vs. the unimaginable crush of pressure at the center of a neutron star, or an object dipped in liquid nitrogen vs. the tiles on the space shuttle during re-entry. Here's an experiment on permanent magnets in "extreme kitchen" conditions that you can try at home. Read more
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- Less Details
Time Required Average (6-10 days)
Tinkering
Prerequisites None
Material Availability A kit is available from our partner Home Science Tools. See the Materials section for details.
Cost Low ($20 - $50)
Safety Adult supervision highly recommended. Use proper caution when transferring or holding magnets at extreme temperatures. See the Procedure for details.
Science Buddies Original
Science Fair Project Idea
Try your hand at this engineering challenge. Can you build a "launcher" device to launch a ball as far as possible and a "receiver" to catch it? Building a receiver provides an extra twist to a traditional catapult project. Add to the challenge by using a limited set of materials to build your machine and calculate a score based on your throw distance and materials used. Read more
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- Less Details
Time Required Short (2-5 days)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Buddies Original
Science Fair Project Idea
Do you think you could build a car powered by nothing but air? A balloon-powered car is pushed forward by air escaping from a balloon, and it is fun and easy to build with materials you already have around your house. Can you imagine how you would want your own balloon-powered car to look? Can you design a car that will travel as far as possible? You can even measure your car's speed using your smartphone and Google's Science Journal app. Get ready to grab some simple supplies to bring your… Read more
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- Less Details
Time Required Short (2-5 days)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Cutting some materials, like plastic bottles, can create sharp edges. Young children should have supervision when using scissors or hobby knives.
Science Buddies Original
Science Fair Project Idea
3... 2... 1... 0— blastoff! In this science project, you will use a bottle rocket launcher to launch your own bottle rocket. You will load it with water and pressurized air, make several launches, and find out what makes your rocket soar the highest. Read more
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- Less Details
Time Required Average (6-10 days)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Average ($40 - $80)
Safety Adult supervision is required at all times. See the safety note at the beginning of the Procedure for details.
Science Buddies Original
Science Fair Project Idea
Have you ever wondered what sounds you can hear in space? The answer is simple: none! In outer space there is utter silence. There are no sounds of traffic jams or thunderstorms or crashing waves. No buzzing bees or babies crying. Just silence. In this experiment, you will discover why empty space is void of sound and prove it with the help of Google's Science Journal app. Read more
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- Less Details
Time Required Very Short (≤ 1 day)
Tinkering
Prerequisites
Material Availability Readily available
Cost Low ($20 - $50)
Safety Use adult supervision when using the stove. To prevent burning yourself, always protect your hands when touching the hot flask and make sure to avoid direct contact with hot surfaces and liquids. Be especially careful when closing the flask with the stopper as it might pop out again.
Science Buddies Original
Science Fair Project Idea
Ever wonder why it is harder to keep your balance with a heavy backpack on? Or why it is difficult to make a toddler's sippy cup tip over? Maybe you are the kind of person who wonders about circus balancing acts and would like to learn how to ride a bike on a rope. Or perhaps you want to know how to make your toy car less prone to toppling over when racing through a sharp curve. In this science project you can learn about balance using marshmallows, skewers, and toothpicks. Sticky, yummy… Read more
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- Less Details
Time Required Very Short (≤ 1 day)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Buddies Original
Science Fair Project Idea
In this cricket-inspired engineering challenge, you will build a machine to launch a ball and knock down a target (called a wicket). How many times can you knock down the wicket in three minutes? Follow the contest rules to try it out and enter the 2020 Fluor Engineering Challenge! Available in Spanish (Español). Teachers, lesson plan versions of this challenge are also available. Read more
+ More Details
- Less Details
Time Required Very Short (≤ 1 day)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
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Free science fair projects.