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Eighth Grade, Physics Projects, Lessons, Activities (116 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.
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Build a Paper Roller Coaster
STEM Activity
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2453 reviews
Have you ever ridden a roller coaster? Have you ever wanted to design your own? There are plenty of expensive toys and even video games that will let you build your own coasters—but in this project you'll make one out of paper and tape, and learn about roller coaster physics along the way! Read more
Build a Balloon Car
STEM Activity
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2050 reviews
Build a balloon-powered car from recycled materials in this fun activity. You can even grab a friend, build two cars, and race them against each other! Read more
Build a Popsicle Stick Catapult
STEM Activity
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793 reviews
Catapults were mighty handy for pirates in the golden age of piracy (during the 17th century). And medieval knights used them centuries earlier for taking down massive castle walls. Even Greeks and Romans used catapults about 2,000 years ago! These simple machines are quite handy, as long as you know how to aim them! In this science activity you will try your hand at catapult technology. Can you predict where your cotton ball will land? Read more
Marble Roller Coaster: How Much Height to Loop the Loop?
Science Fair Project Idea
Scientific Method
This is a really fun project even if you don't like going on roller coasters yourself. You'll build a roller coaster track for marbles using foam pipe insulation and masking tape, and see how much of an initial drop is required to get the marble to "loop the loop." It's a great way to learn about how stored energy (potential energy) is converted into the energy of motion (kinetic energy). Read more
Build a Telescope
STEM Activity
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143 reviews
Build your own telescope that you can use to see far-off objects in this fun STEM activity! The type of telescope you will build in this activity is also called a monocular or a spyglass. Read more
Build a Gauss Rifle!
Science Fair Project Idea
Scientific Method
What can you do with magnets and ball bearings that makes a lot of noise? Why, build a magnetic linear accelerator, called a Gauss rifle, of course! Now, this magnetic accelerator is not a weapon, but a way for you to learn a lot more about physics concepts, like momentum. In this physics science project, you will investigate how far a ball bearing launched by a Gauss rifle will fly, depending on how many magnetic acceleration stages are in the setup and the ball bearing's initial velocity.… Read more
Paper Roller Coasters: Kinetic and Potential Energy
Lesson Plan Grade: 6th-8th
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43 reviews
What goes up, must come down in this thrill-seeking lesson plan! How much energy does a roller coaster car need to make it through a loop? In this lesson your students will learn about kinetic and potential energy as they build their own roller coasters from simple classroom materials. Read more
NGSS Performance Expectations:
  • MS-PS3-2. Develop a model to describe that when the arrangement of objects interacting at a distance changes, different amounts of potential energy are stored in the system.
  • MS-PS3-5. Construct, use, and present arguments to support the claim that when the kinetic energy of an object changes, energy is transferred to or from the object.
Rainbow Fire Science Project
Science Fair Project Idea
Scientific Method
Astronomers can figure out what distant stars are made of (in other words, their atomic composition) by measuring what type of light is emitted by the star. In this science project, you can do something similar by observing the color of flames when various chemicals are burned. Read more
Build A Wall Marble Run
STEM Activity
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138 reviews
In this activity, you will use recyclable materials to make your own wall marble run. A marble run is a fun toy and a great way to learn about physics concepts like kinetic and potential energy. Do you think your marble will make it to the end of the track? Read more
How Does Color Affect Heating by Absorption of Light?
Science Fair Project Idea
Scientific Method
Why is it more comfortable to wear light-colored clothes on a hot summer day? Why wear a dark-colored jacket for early-morning fishing on a cold lake? How much difference can it make? Here's a project where you can quantify how much difference color makes for absorbing heat. Read more
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