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Urban Heat Islands

9/9/2018

2 Comments

 
Urban-Heat-Island-lesson-plan
I currently live in Phoenix, AZ, which is the 6th largest city in the United States. Considering our large population size and desert climate, we have a huge problem with heat. In the summer it is not uncommon for the temperature to stay above 100F all night. It can be miserably hot! 

An urban heat island is an urban area that has a much higher temperature than the surrounding areas. Students probably haven't heard the term coined before, but can easily explain it to you. If you ask them why downtown Phoenix is hotter than some of the surrounding pockets of town, or ask them why it's cooler to stand under a tree than under a metal awning, they can explain it to you. As I was preparing to teach this concept to my students, I found (and created) a few resources you may want to check out!
Urban-heat-island-experiment
Urban Heat Island Lab
In this activity, have your students head out around your school campus and measure the temperatures of different materials. Students will compare surfaces such as cement, asphalt, dirt, and grass in the sun and the shade. Students can brainstorm ways to improve the school campus and lower the overall temperature (and electric bill!) of the school. 

asu-ecology-explorer-urban-heat-island
ASU Ecology Explorer Lessons
Arizona State University has a few lessons on urban heat islands that are great! This first lesson uses thermal images to teach students that urban heat islands are a night-time phenomenon, opposed to day time. Students will compare thermal images and try and figure out which ones were taken during the day and which were taken at night. 
This second lesson also uses thermal images, but students have to predict which object in the picture would be the hottest, and which would be the coolest. (If you don't have access to a color printer, you can just project the images on the board). 

Urban-heat-island-climate-central
Climate Central Interactive
Do you live in an urban heat island? This fun interactive looks at 60 cities across the US and gives you data on each one. Check it out and see if your city is listed!

citizen-science-project-ideas
Citizen Science
Start a citizen science project, where your students collect data about temperatures in your area, brainstorm ideas to mitigate the problem, and reach out to scientists, politicians, or even school board members to try and make a difference! It could be something as simple as planting a tree on campus or taking them to a community garden, to something larger like having students apply for grant money to have solar powered cell phone charging stations installed. If you let the students decide what impact they want to make their work ethic may surprise you! 
​(One great nonprofit organization that plants trees is onetreeplanted.org. They plant a tree for every dollar donated!) 

With climate change being a current global crisis, we have an obligation to teach students how to make more sustainable decisions. If every one of your students made a small change in their front yard we could see incredible results. Who knows, you might have a student in your class that will major in urban planning or sustainability! 

2 Comments
Jennifer Shoulders
9/17/2018 08:21:14 pm

I am a 7th grade Life Science teacher. This year my school is trying to implement cross curriculum activities. This activity definitely lends itself to learned in Social Studies and ELA. Often times Math is left out because of their instructional calendar. Science standards have changed and in my county they are modeled after the NGSS often times the standard ask of the students to develop a model or engage in an argument from evidence. This offers a different perspective that I never thought about when my students learn about the Ecology unit. I really like the Citizen Science part of it. Many times middle school students think that they have no say or what they doesn't matter and this definitely shows them otherwise.

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Becca
9/22/2018 05:29:17 pm

Thanks for your kind words! This could be a great cross-curricular topic. To include some math you could have students graph temperature changes of your city over time- I would probably try and find data for average temps each decade opposed to each year so you get a larger picture.

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    Becca 
    The face behind Science Lessons That Rock

    I'm a teacher, blogger, and curriculum writer.
    I've been teaching science for 12 years at both the middle and high school levels.

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