Science

Our Biology students designed their own experiments to compare methods for protecting a strain of yeast that was particularly sensitive to UV light.  They tested the results for different levels of stated SPF protection, tried organic sunscreen vs non-organic sunscreen, wondered if a spray would be better than a squeeze option, questioned how different brands would protect the yeast, and wondered it paper would offer any protection.

The posters they presented below show their experimental results.

The zoology students dissected squids to take a closer look into cephalopod anatomy. They studied the squid’s external and internal features, and will be able to compare their findings with the anatomy of other marine animals.

In physics, students described one-dimensional constant velocity motion using multiple forms of representation including graphical, mathematical, verbal, and motion maps.

The students made Rube Goldberg machines in engineering class. They explored the six simple machines and the engineering design process to imagine, build, and iterate a functional energy transfer machine.

Our Human Origins students were handed a bag of various fasteners (nails, staples, screws, etc.) As renowned taxonomists, their task was to develop a classification scheme that meets the established rules of the Linnaean system.

They could use whatever rationale they wanted to classify the members of the fictional kingdom, Nectii, such as form, function, or whatever they’d like, but they had to be prepared to defend their classification scheme.

They made tree charts of their classification schemes, and provided descriptive names for each category: class, order, genus and species. They also had to provide a written explanation of why they chose to categorize the objects as they did and what their rationale was for grouping some objects together and excluding others.

Biology students conducted a scientific exercise using a dichotomous key to identify Jelly Belly flavors, similar to how biologists historically identified species before DNA technology. They applied key scientific skills such as observation, hypothesis formation, and testing. This tasty experiment highlighted both the strengths and limitations of traditional classification methods, providing insights into scientific practices.

Zoology students applied the principles of taxonomy to classify stuffed animal toys by characteristics such as size, shape, color, pattern, fur, feathers, scales, wings, and tails.

It’s time to share some photos from our end of the year Engineering fair.

The Farms class visited Morningside Urban Farm and met with farmer Hannah Patrick and Angela Charlton, Carilion Community Health Educator & Morningside Urban Farm Coordinator, to learn about SE Roanoke’s own small farm and garden and the many cool community events happening there. Thank you to both Hannah and Angela for their time!

The CHS Farms class visited LEAP’s Food Hub to learn about all of the good work LEAP does making important connections within the Roanoke food system.