Ninth Grade Science Experiments (Page 183)

Build an Adaptive Game Controller for a Raspberry Pi

Science Fair Project Idea

Engineering Design Process

People with limited mobility, especially in their hands, may not be able to use traditional video game controllers. Adaptive game controllers use a variety of peripherals, like larger buttons, foot pedals, or specialized joysticks, to let people with limited mobility play video games. This video shows how to build a very simple adaptive controller that works with Scratch games on a Raspberry Pi. Can you build an adaptive game controller for a hardware platform and game of your choice? If you… Read more

Build an Ion Wind Rotor

STEM Activity

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Can you use electrically charged "wind" to make something move? Find out in this fun project as you build your own ion wind rotor. Read more

Build Fun Robots with Students

Blog Post

Encourage students to explore robotics with a guided, hands-on project or activity. Science Buddies has projects, activities, Lesson Plans, and convenient kits that make it easy to do robotics with students. Build Fun Robots! Robotics projects for K-12 students. Hands-on STEM with Science Buddies. www.sciencebuddies.org Student Robotics Projects and Activities Science Buddies has projects at all levels for student robotics. See our Bring Robotics to… Read more

Build Your Own Xylophone Out of Copper Pipe

Science Fair Project Idea

Scientific Method

Did you know that making a musical instrument is not just an art, but a science, too? You can discover just how scientific by building your own xylophone (or a set of chimes) from copper pipe. First you'll need to do some research about the math and physics involved in the sounds of a xylophone. For example, there are equations that describe the transverse (side-to-side) vibrations of a pipe. These vibrations create the sounds you hear. So, to get specific sounds, xylophone makers must apply… Read more

Building Beaches

STEM Activity

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A day at the beach is a wonderful way to spend time with your family and friends. You can swim, play games and build sand castles. But have you ever wondered how the beach you are standing on came to be? How, for example, did all of that sand get there? Beaches are formed and continually changed by the ocean's waves moving rock particles onshore, offshore and along the shore. In this activity, you can investigate how beach formations are made by some parts of a beach that can resist erosion… Read more

Building Toys: Doing Fun Science at Home during School Closures (Activity #5)

Blog Post

Follow along with a Science Buddies parent who is using family STEM activities to keep her kids learning at home during the COVID-19 school shutdown. New posts every Monday, Wednesday, and Friday. Today's adventure... playtime and science time converge when building parachutes for favorite toys. Building Toys Drives Away Boredom "I'm bored" is one of those sentences I hate as a parent. It ranks right up there with "Are we there yet?". These days… Read more

Camera 'Shakes'

Science Fair Project Idea

Scientific Method

You can compare the picture quality for photos taken at different shutter speeds with the camera handheld vs. with the camera on a tripod. (This is best done with a camera that has manual exposure control.) Read more

Can Garlic Prevent Crown Gall?

Science Fair Project Idea

Scientific Method

Crown gall is a plant disease caused by the soil bacterium Agrobacterium tumefaciens. This project uses tomato plants to investigate whether garlic extract can prevent crown gall infection. Read more

Can Herd Immunity Combat Viral Epidemics like COVID-19?

Science Fair Project Idea

Scientific Method

One strategy you may have heard suggested for dealing with the COVID-19 epidemic is to let nature take its course and let COVID-19 infect enough of the population for us to reach the herd immunity threshold. Does this make sense as a public health strategy? You can explore this question scientifically using SimPandemic, a free online tool for modeling infectious disease outbreaks. Before you begin, you will need to know a bit about herd immunity. Herd immunity, sometimes called community… Read more

Can Mulch Reduce Garden Water Requirements?

Science Fair Project Idea

Scientific Method

Divide a part of your garden into two equal plots, with each plot receiving equal amounts of sun. Cover one plot with two inches of organic mulch, such as compost or ground bark. Leave the other plot uncovered. Use the same amount of water for each plot for two or three weeks. At the beginning of the experiment, and at one-week intervals, dig down and check the soil in each plot for moisture content. Which plot holds water better? Which plot shows better plant growth? (McCausland, 2006) Read more

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