Guest Blog Post by Ben Koch, Senior Research Associate, NAU Researchers at NAU’s Center for Ecosystem Science and Society (ECOSS) have partnered for the second year with one of Kathryn Wertz's 6th grade science classes at Sinagua Middle School in Flagstaff as part of the ‘Scientists in the Classroom’ program founded by Jillian Worssam, and assisted by STEM City. In November, ECOSS scientists worked with students to begin a 5-month-long decomposition experiment in the forest near the school. The students learned that decomposition is the process by which living things are broken down into simpler and simpler pieces, and that decomposers like invertebrates, bacteria, and fungi accomplish this feat by consuming dead organisms in order to get the energy they need to survive, grow, and reproduce. The students considered which kinds of dead organisms decompose quickly, and which kinds decompose more slowly, depending on their chemical composition (i.e., a deer skeleton will take longer to decompose than an earthworm because it is made of bone, not soft tissue). The students are investigating these ideas with a field experiment in which they are comparing the decomposition rates of leaves from two different species of trees: Oak and Ponderosa Pine. The students deployed set amounts of each of these leaf species in mesh bags on the forest floor near their school, and they used bags with two different sizes of mesh: coarse (the black bags in the photos) and fine (the white bags in the photos). When placing the leaf-bags in the forest, the students made observations and predictions about which leaf type and which bag type will yield the fastest decomposition. In April, ECOSS scientists and the students will retrieve their leaf-litter experiment to measure the mass loss of the leaves in each bag. The students will then take a field trip to the ECOSS laboratories on the NAU campus, where, among other activities, they will be able to weigh their leaf-bags and create a graph of their experimental results.
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NAU Seniors Kara McAlister, Isabella McCormick, Abby Rulison, Danna Durney, and Darlene Escobedo, organized a career fair for the students in the Kinlani Bordertown Dormitory for their Social Work 423 Course taught by Dr. Anne Medill. They raised funds for pizza for the Flagstaff High School students who live at the dorm. The five students worked together to invite different professionals to the Career Fair. A partial list includes: Rick Wright from the City of Flagstaff Wastewater Treatment; Jennifer Dunivn from Empire Beauty School; Jessica Garard and Matt Brydenthal from Re/Max Peak Properties; Efeleina Yazzie from Coconino County Adult Probation; Owner and Personal trainer Jesse Coddington from New Roots; Doug Hatch from Hatch Plumbing; Highland Fire Department firefighters Casey Wood, Chris Thomas and Earl Callendar; Mark Cox from the Boys and Girls Club; Hannah Ris, Matt Dyer, Norria Brice, Regina Eddie and Sophia Maceira from NAU Nursing; Danny Gutierrez and Howard Coldwell from the US Forest Service; Marina Xoc Vasquez from Applied Indigenous Studies; and Sonny Lomadofkie, a Native Initiatives Mentor. Thank you all! Dr. Medill has student groups from both sections of this class form teams to create a meaningful project in the community. Thank you, Dr. Medill and students. And thank you to all the community members that gave their time and energy to this wonderful event! Also, thanks to STEM VISTA Member Vicki Anderson for her support of this project!
Dr. Darlene Lee, an anatomical and clinical pathologist with Northern Arizona Healthcare, led a tour of Clinical and Pathology Laboratory at Flagstaff Medical Center to the high school iCREATE students. The iCREATE class is unique in the pronounced role of community members to the success of the class. Dr. Lee gave a tour last year, highlighted here, and it was one of the most memorable tours for the class. She made this one even more hands-on with additional partners from FMC. Garn Bailey, Pathology Assistant, once again thoroughly engaged the students with a variety of human organs that he prepares for the pathologist to more critically analyze as needed. He dissected a gall bladder to show the gall stones, as well as a kidney that showed a cancerous area. He also went through the entire process of preparing thin sections from larger tissues and organs for analysis. The surgeons in the hospital rely on the Clinical and Pathology Laboratory to rapidly prepare and assess samples while some patients are in surgery; to make sure they have removed all cancerous cells, or to determine the specific pathogen. When that occurs, tissues are quickly put on ice and are then sliced thinly in a cryostat, which keeps the tissues frozen. They are then rapidly stained and assessed by the pathologist. This entire process can occur in 20 minutes so the surgeon is able to receive the information during surgery to improve the patient's outcome. The students then looked at blood samples with Dr. Lee. They were able to identify components of blood including white blood cells (leukocytes), red blood cells (erythrocytes), and platelets (thrombocytes). Platelets are tiny blood cells that help your body form clots to stop bleeding. She also showed them the image of the cancerous kidney tissue from the kidney Garn had shown them earlier. Students observed the hospital's blood supply with Jordan Ippolito, a Medical Lab Scientist at FMC. She told the students that the shelf life of platelets is only 5 days, while frozen plasma is good for a year. Red blood cells are only functionally sound for 40 days because their ability to carry oxygen (their primary role) is impaired after that. The importance of donating blood cannot be overstated! Two students volunteered to have their blood drawn so they could determine what blood type they are. Phlebotomist Troy Schafer cracked jokes with the students to put them at ease. Jordan then had the remaining students look at blood sample directly through the microscope so they could put their earlier practice to use. The final activity was to discuss what having blood types A,B, AB, or O really means, and then to complete the analysis of the blood types using the antigens that can cause blood to clot, depending on what the blood type is. Thank you again for the fascinating and educational tour of the Clinical and Pathology Laboratory at FMC! Special thanks to Dr. Darlene Lee, Garn Bailey, Jordan Ippolito and Troy Schafer! You are living up to your mission and goal; you definitely wowed us!
Guest Blog Post by Dawn Pfeffer, STEM VISTA at Killip STEM Academy
Girls Teaching Girls is a mentorship program between NAU students and young girls in Flagstaff at select locations. Girls Teaching Girls provide lessons and hands-on activities to promote leadership, community activism, empowerment, and Science, Technology, Engineering, Art and Math (STEAM) related skills with the goal of fostering female leaders of the future. We kicked off the first week of the after school program at Killip Elementary with four girls participating on day one and ended the week with eight Killip students! The NAU girls seemed just as excited as the Killip girls to see this program get started. The first week included drawing pictures, talking about important problems they see and starting to ask the question "how can we fix these problems?" Project Questions posed by NAU students that the Killip students selected from are listed below: 1. How can we become sustainable citizens? 2. How can we create a positive change through art? 3. How do we destroy stereotypes and stigmas? 4. Why is it important that we are all diverse and different? 5. How can we maintain a happy brain? 6. How can we get adults to better understand kids? What does it mean to be bilingual? This problem based learning mentorship is just getting started and we here at Killip cannot wait to see what these Girls accomplish! Note: Girls Teaching Girls is also mentoring at the Boys and Girls Club in Flagstaff so stay tuned for more updates! Guest Blog Post by Dawn Pfeffer, STEM VISTA at Killip STEM Academy During the start of Killip Elementary School’s fall break, some 3rd, 4th and 5th grade students spent time using the engineering design process to design gloves for astronauts in space! We spent the week working in teams to test different materials against the dangers in space, including space dust, cold temperatures, and potential impacts from flying objects. Using the results from their tests, students chose the materials provided to ensure safety for the astronauts. They also had to make sure their astronauts could complete tasks after exposure to these dangers. Preliminary tests led to ingenious designs by these clever engineers! Students persevered through tough challenges when the materials didn’t function as planned, but we worked together to develop solutions, improve designs and complete testing. At the end of the week, the students were able to showcase their designs and demonstrate the tests to future engineering students at Killip. Way to go engineers! The Engineering Space Gloves curriculum is being developed through a collaborative project with NAU's Center for Science Teaching and Learning, the Flagstaff USGS Astrogeology Center, the Museum of Science Boston, and other collaborators including STEM City. The PLANETS (Planetary Learning that Advances the Nexus of Engineering, Technology, and Science) project is creating space-themed educational resources for out-of-school-time programs.
The 5-year grant is supported by NASA under cooperative agreement NNX16AC53A. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Aeronautics and Space Administration. My name is Madison Ledgerwood. I am currently a STEM VISTA at NAU's Rethink Possible. I was raised and shaped in the Southwest which nurtured my love for the land, and of all species. I relocated to indigenous land, Flagstaff, in 2010. This is where earned my degree in Environmental Studies, engaged with the community around the intersection of social and environmental issues in the Action Research Teams (ARTs), and began to uncover my own power and potential. Before long, I realized I wanted to more deeply understand what diverse experiences and understandings led individuals to begin fostering a thriving and harmonious world and what it took for them to devote themselves to such engagement and maintain their well-being. I researched this and earned my MA in Sustainable Communities. I also created Community and University Public Inquiry, an interdisciplinary community-based research program, while in graduate school.
Now, I yearn for a world in which people do not feel powerless but utterly capable; a world in which people dream of more sustainable, thriving futures and find their unique way to contribute to creating such a world. When I tune into the earth, the plants, the rocks, the wind at the base of the San Francisco Peaks, I know that hope is found in more of us finding our niche, in more of us finding the unique work we have to offer and that is needed now on the planet. I am committed to mentoring others who are searching for their skills, power and potential. I aim to spread light by blooming emerging seeds into empowered leaders. My STEM VISTA position cultivates my dream by providing me the opportunity to design curriculum, connect to volunteers in diverse fields, and expand the reach of a program that engages students around the “big questions” of college, such as what they want to major in and contribute to the world. Guest Blog Post by Vicki Anderson, VISTA Member, STEM Educator and Curriculum Developer at Flagstaff Bordertown Dormitory Kinlani Flagstaff Bordertown Dormitory has a Robotics/AISES (American Indian Science and Engineering Society)/STEM Club with 15 members so far! They are making robots with our Lego Robotics Coach-Mentor Larry Marek. They began using the NAU Cline Library MakerLab on September 14th with Bryan Johnson, the Tech Services Coordinator. Club members will learn TinkerCAD to use NAU’s 3D printer for their Engineering STEM Challenges prototypes. On September 9th, nine high school students participated in an Indigenous Youth STEM Academy with the Flagstaff Open Space Program. This program aims to connect Indigenous youth with cultural and natural resources at Picture Canyon Natural and Cultural Preserve. The Preserve provides a unique opportunity for learning about the connection between culture, community, and stewardship as it is home to Northern Sinagua petroglyphs and habitation sites, and represents a place of cultural importance for many surrounding tribal communities. Each session encompasses a full day of activities, including an interpretive tour of the Preserve, a lunch panel discussion with local STEM professionals and students, and a hands-on service-learning project. This program is organized by STEM VISTA Member Erin O'Keefe.
STEM Engineering Challenges competitions are also open to all students biweekly. All STEM activities are coordinated by AmeriCorps VISTA educator Vicki Anderson, and our motivated FBD staff. As you can see, we are “steaming” ahead in our STEM Education projects! The students attended the Flagstaff Festival of Science “Engineering Solutions” kick off with keynote speaker Kyle Maynard on September 22nd at NAU’s Ardrey Auditorium. He was born without a complete set of arms and legs. With engineering solutions from Kahtoola, a Flagstaff company, and serious determination, he has climbed Mt. Kilimanjaro in Africa and Mt. Aconcagua in South America. Get out for some of the 100 free events at the 28th Annual Flagstaff Festival of Science and you will see the Kinlani STEM students! NAU's Merriam Powell Center for Environmental Research Colorado Plateau Museum of Arthropod Biodiversity is hosting their 13th annual Bug Camp at Willow Bend this summer. The first camp was from June 19 to 23 and the next one is from July 17 to 21, but the camp already has a long waiting list. What makes Bug Camp so popular? Bugs of course! Plus some very cool camp counselors. Campers learn about insect natural history, behavior, and biodiversity through a series of fun projects and activities. Campers collect insects, create their own insect collections, build their own bugs, and cook and eat insect cuisine. They also go out on a night adventure where they can lure moths, and other new insects in with lights. Campers are from 6 - 10 years old and their are 7 counselors plus 2 junior counselors for 24 campers in teams with cool names like the Ladybug Ladies, Flying Tarantulas, and Lava Locusts. This year, they were able to offer 6 scholarships for students to attend the camp. Campers come from all over Arizona, plus Colorado, Nevada, and California! Lindsie McCabe, a PhD candidate at NAU, has been leading the Bug Camp for the past four years. Her advisor, Neil Cobb, began the Camp 13 years ago and says it seems like yesterday. Neil came in for “Ask a Scientist" and tried to answer questions from the campers: "How many total hairs are there on all the flies in the world?" and "How many baby insects are being born right now?" At the end of camp one of the campers ran up to Lindsie and hugged her legs and said "I love this camp I never want to leave!". Thank you to Neil Cobb and the Bug Camp counselors for photos, information, and quotes!
Guest Blog Post by Karin Wadsack and Todd Traen, with an update from Jenna Samora On Friday, April 28th, nearly 100 middle and high school students competed in the first Arizona KidWind Challenge wind turbine design competition. 20 teams of students came from Sinagua Middle School, Mount Elden Middle School, STAR School, Winslow High, Coconino High, and Northland Preparatory Academy. The teams brought a wind turbine they had designed and built ahead of time to test in a wind tunnel, determining whose turbine made the most electricity over a 30-second test period. The teams also competed based on their turbine design, technical presentation, technical design knowledge, and general wind energy knowledge. The teams each met with a group of judges from the wind industry, giving a presentation about their project and answering specific design and knowledge questions. The teams also competed in “instant challenges,” building sail cars, windmills for weight lifting, and playing wind energy Jeopardy. Throughout the day, students got to interact with other students from different schools and grade levels, and explain their own projects to peers, teachers, coaches, and visiting guests.Turbines at the competition included vertical and horizontal axis turbines, systems with and without gears, and some turbines for which the students had wound their own generators. Frequently heard: “This is AWESOME!” “Check out that design!” “I’m having SO MUCH fun!” “Next year we’re going to do _____!” The Wind for Schools project staff of eight was supported by an additional eight amazing volunteers from the Institute for Tribal Environmental Professionals and the Climate Science and Solutions professional master’s program at NAU. The Expert Judges also volunteered their day to the event. The Boys & Girls Club of Flagstaff generously donated its facilities for the day. Update from Jenna Samora on the MITe Team's trip to Nationals: The Mustang Gust Runners ended up taking 1st in the Vertical Axis Insta-Challenge, but did not score high on the original wind turbine design. After the first competition in Flagstaff, the students 3D-printed their own gears and created their own generator. However, they were unable to get the energy output that they hoped for, so they went back to using the KidWind generator. Even through their turbine was not the best design, the boys still learned a lot and had a great time! Thank you to our dedicated judges! Ross Taylor, Wind Subject Matter Expert Ken Kotalik, Primus Wind Power Jim Corning, Prometheus Renewables Daniel Snyder, Westwind Solar Inc Darrin Russell, Wind Subject Matter Expert Guest Blog Post by Rose Houk It’s pretty easy to just flush the toilet and forget where our human waste goes. For most of us, it’s “out of sight, out of mind.” But on a Saturday in April, nearly 50 interested residents toured Flagstaff’s Rio de Flag Water Reclamation plant to look a little deeper into where our wastewater goes once it leaves our homes and businesses. It turns out the behind-the-scenes story is really interesting. The Rio de Flag Water Reclamation Plant is a clean, attractive building standing just beyond Sam’s Club by a trail along the Rio. Inside are bright offices, maps on the walls, and a friendly city employee, Jim Huchel, who greeted us and led the tour. Once we were all signed in, Jim gave us a firsthand look at the reclamation process from beginning to end. The plant, built in 1993, receives wastewater from the west side of Flagstaff. It first comes into the “primary clarifier,” what looks like a big black spaceship that just touched down. We peered inside to see a thick, dark, watery substance just sitting there. Unseen were the natural bacteria that were beginning to biologically alter the wastes. Some of the material in the chamber stays suspended, while other parts sink. The suspended solids are skimmed off and sent down to the city’s other water reclamation plant at Wildcat Hill. In the next step, the liquid enters a secondary chamber where it’s further clarified. It then flows indoors where it’s treated with ultraviolet light for a third step of purification. Jim poured the water into a wineglass, and it looked good enough to drink. In fact, it’s graded as Class A+, but under Arizona regulations reclaimed water can’t yet be used as potable, or drinking, water. Residents had lots of questions: Is the reclaimed water okay to put on plants? Is it safe to drink? Using reclaimed water for drinking will take getting over the “yuck” factor, said Erin Young, the city’s water conservation manager. She noted that Arizona is devising regulations that might make that a possibility. The Rio de Flag plant can treat up to four million gallons of wastewater each day. In summer, nearly all the reclaimed water is spoken for –to irrigate fields, parks, and golf courses, some residences, and for industrial uses. In winter, the city sells excess reclaimed water to the Arizona Snowbowl for snowmaking. A certain percentage also goes back into the Rio. According to the city, reclaimed water accounts for about 20 percent of Flagstaff’s total water use. Next time you see those purple pipes and signs indicating reclaimed water, it will have a whole new meaning. A Big STEM City Thank You to Rose Houk for this post! And to Jim Huchel and Erin Young of the City of Flagstaff for this engaging and educational tour!
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