Ninth Grade Projects, Lessons, Activities (Page 64)

Encryption

Science Fair Project Idea

Scientific Method

Want to send coded messages to your friends? Can you write a simple letter-substitution encryption program in Python or JavaScript? How easy is it to break the simple code? Can you write a second program that "cracks" the letter-substitution code? Investigate other encryption schemes. What types of encryption are least vulnerable to attack? Read more

Engineering Silver Nanoparticles

Lesson Plan Grade: 9th-12th

Engineering silver nanoparticles for use in water filters has shown promising results in keeping water free of disinfection byproducts that arise after chlorination. In this activity, the students do individual research to learn about nanotechnology and silver nanoparticles, and how silver nanoparticles can be used in water treatment. Students choose a plant of their choice (from home, school, or from the teacher) to use as an agent to reduce silver nitrate into silver… Read more

Evolution of Digital Organisms

Lesson Plan Grade: 9th-12th

Students are introduced to the concepts of digital organisms and digital evolution. They learn about the research that digital evolution software makes possible, and compare and contrast it with biological evolution.Engineering Connection Computer scientists and engineers work together to create software and hardware to model complex systems and create new technologies. The digital evolution software, Avida, was created by a group of computer scientists and software… Read more

Evolution of Friendship Groups Over Time

Science Fair Project Idea

Scientific Method

This project asks the question "How do friendship groups change over time?" The results may support inferences about how "people skills" develop. What types of changes would you expect to see? Do you expect friendship groups to grow larger over time? Do you expect that individuals will belong to more, less or about the same number of friendship groups as they get older? Do you think there will be more or less exclusivity among groups (and how would you measure such a concept)? Do you… Read more

Experiment with Factors that Affect Roundup® Weed Killer

Science Fair Project Idea

Scientific Method

Farmers are constantly battling various types of weeds that compete with the crops they are trying to grow. One of the tools they use to combat unwanted plants is a chemical called glyphosate. Glyphosate is the active ingredient in Roundup, a widely used weed killer. In this plant biology science fair project, you will explore the factors that affect the activity of glyphosate. Read more

Explore Satellites with Powerful Simulation Software

Science Fair Project Idea

Scientific Method

The first man-made satellite, the Sputnik 1, was launched in 1957. As of late 2020, more than 2,600 man-made satellites orbit Earth, with a little over 70% of them in low Earth orbit. If you would like to delve into how satellites and their sensors are configured, or into how their orbits are planned—and do not shy away from a little programming—this project is for you! With the help of FreeFlyer®—powerful software that allows you to simulate satellite orbit and… Read more

Exploring the Impacts of Feeding the World

Lesson Plan Grade: 6th-10th

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© 2015 California Academy of Sciences In this two-day lesson, students will be introduced to several issues related to the social, economic, and environmental impacts of our current food system, including food waste, food deserts, agricultural land use, and the environmental impacts of diet choices. Read more

NGSS Performance Expectations:

MS-ESS3-4. Construct an argument supported by evidence for how increases in human population and per-capita consumption of natural resources impact Earth's systems.

Factors that Affect the Transfer of Force through Saturated Soil

Science Fair Project Idea

Scientific Method

Soil liquefaction is a phenomenon where soil that is saturated with water suddenly loses its strength and behaves like a liquid. This usually occurs due to sudden, large stresses on the soil — for example, from an earthquake. This can be very dangerous for buildings sitting on top of the soil, as they can suddenly sink into the ground! The embedded video explains soil liquefaction in more detail. Is there a way to prevent soil liquefaction? Do you think adding certain materials to… Read more

Feel Free to Sleep at School... If You're a Computer!

Science Fair Project Idea

Scientific Method

Sleeping in class isn't allowed... unless you're a computer! In fact, the Environmental Protection Agency (EPA) suggests that putting your school's computers to sleep when they're not in use might reduce a school's energy bill significantly. In a study done at the North Thurston public schools in Olympia, Washington, EPA officials worked with the district to cut computer energy and costs by approximately $45,000 annually! How? By implementing a variety of power-management strategies for the… Read more

Fighting Litter in Your Neighborhood

Science Fair Project Idea

Scientific Method

Is there a public park, playground, or beach near you that suffers from a litter problem? Here is a way that you can do something about it! First, get a measure of the size of the problem by conducting a litter survey. Select a fraction of the area to survey at regular intervals (e.g., every two or three days, or maybe once a week). The area should be large enough so that you can get a representative sample of litter, but not so large that you can't clean it up. Each time you conduct your… Read more

Ninth Grade Projects, Lessons, Activities (789 results)

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