Ninth Grade Projects, Lessons, Activities (Page 58)

What Sensors Are Best for Self-Driving Cars?

Science Fair Project Idea

Scientific Method

Self-driving cars use a variety of sensors to evaluate and navigate their environment. Each type of sensor has advantages and disadvantages. In this project you will evaluate two common types of distance sensor (ultrasonic and infrared) and compare their performance in different scenarios. Read more

What To Do About CO₂?

Lesson Plan Grade: 5th-12th

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Where does CO₂ come from and how does excess carbon dioxide in the atmosphere affect the ocean and aquatic life? In this lesson students are introduced to the carbon cycle and explore pH and acidification with hands-on experiments. They then connect their experimental data with real-world data to evaluate claims about carbon dioxide and ocean acidification. Finally, students are introduced to how different companies and research groups are using green chemistry to build carbon capture… Read more

What's the Best Way to Disable a Drone?

Science Fair Project Idea

Engineering Design Process

Drones are small, fast, and maneuverable - this can make them very hard to knock down! Check out this Mark Rober video where he explores both how professional defense companies and some backyard YouTube engineers tackle the problem of knocking drones out of the sky. Can you take this engineering challenge on yourself? What methods can you devise to take down a drone? Which one works the best? Drones can be expensive, and you probably do not want to risk damaging a $1,000 drone for your science… Read more

Which Acne Medication Can Really Zap That Zit?

Science Fair Project Idea

Scientific Method

Have you ever wondered where acne comes from and how you can treat it? One major cause of acne is the colonization and infection of clogged pores with bacteria. In this science project, you'll test different acne medications and treatments to determine their effectiveness at killing bacteria. Read more

Which Team Batting Statistic Predicts Run Production Best?

Science Fair Project Idea

Scientific Method

Here's a sports science project that shows you how to use correlation analysis to choose the best batting statistic for predicting run-scoring ability. You'll learn how to use a spreadsheet to measure correlations between two variables. Read more

Which Wing Design Creates the Greatest Lift?

Science Fair Project Idea

Scientific Method

Have you ever flown in an airplane, or looked up at one flying in the sky, and wondered how such a massive machine can stay in the air? Airplanes can stay in the air because their wings, also referred to as airfoils, generate lift. Engineers use devices called wind tunnels to experiment and test different wing shapes when they design new airplanes. Wind tunnels let engineers make careful measurements of the air flow around the wing, and measure the amount of lift it generates. If you can get… Read more

Why Do Birds Fly in a V-formation?

Science Fair Project Idea

Scientific Method

Have you ever wondered why geese fly in a V-formation? In this science fair project, you will build a wind tunnel to test how the formation of birds in flight actually affects their flight efficiency. Read more

Why Do Flying Rings Go So Much Further Than Frisbees?

Science Fair Project Idea

Scientific Method

If you've played catch with both Aerobie flying rings and Frisbees, you know that the rings fly much further than the Frisbees with the same throwing effort. Why is that? Investigate the aerodynamics of flying rings and flying disks and find out! Read more

Why Does the Moon Appear Larger at Some Times?

Science Fair Project Idea

Scientific Method

Some claim the Moon appears larger when near the horizon. Make a series of observations of the Moon, measuring the Moon's angular diameter each time. You should also note the Moon's altitude above the horizon, and the Moon's phase. You should do background research on the lunar orbit to determine the necessary time period. Do you find predictable variations in the Moon's diameter? Can you relate this to the Moon's changing distance from Earth? From your data, try to determine when apogee and… Read more

Wily Waves: Build an Oscillating Water Column to Extract Energy from Ocean Waves

Science Fair Project Idea

Scientific Method

The ocean is a wondrous force of nature. It affects the weather, and provides us with food and renewable energy to power our lives. How can the ocean provide us with renewable energy? One way is to extract the energy that is in the waves. There are many kinds of power systems that can be installed to extract energy from the waves, depending on the location. In this energy and power science project, you will build and test a simple model of an oscillating water column device to create power. How… Read more

Ninth Grade Projects, Lessons, Activities (790 results)

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