In today’s lesson, we are examining water use and water quality. Satellite imagery helps scientists to better understand the changes in the environment. Examine the images below of the Aral Sea; the left image is from April 10, 1986, and the right image is from June 5, 2024. The water loss between the two images is striking. Once, the Aral Sea was the fourth-largest lake in the world; however, the Soviet Union diverted two major rivers to irrigate farmland (human water use), cutting off the inland sea from its water source in the 1960s.
What a difference 35 years can make!?!
We continue our odyssey, exploring the lessons of the 2024 Earth Observation Day poster, “Earth Science Everywhere.“ The lesson fulfills the NGSS MS-ESS3-3 standard. Students will examine how humans impact earth systems through water use and quality. Human activities can significantly alter the biosphere, sometimes damaging or destroying natural ecosystems. Changes to Earth’s environment can have different impacts (negative and positive) on other living things. Humans can perform activities and invent technologies to mitigate or prevent negative impacts on the Earth.
After discussing the images, students will be asked to read an article from the NASA Earth Observatory website: “World of Change: Shrinking Aral Sea,” to learn more about what caused this water loss and view a time-lapse video of the shrinking sea. Next, students will have a chance to use Google Earth to investigate the shrinking of the Aral Sea with measurement tools and various years of imagery and create their own time-lapse videos as time permits. After that, as the lesson wraps up, students will learn about environmental protection careers. Finally, an online game or printable quiz is available to test students’ comprehension of the main topics of the lesson.
To download the lesson:https://ckan.americaview.org/data/AmericaView/EOD/2024_eod_water.pdf
To view the 2024 EOD poster and other lesson plans: https://ckan.americaview.org/dataset/2024-earth-observation-day-poster
View related posts:
Part 4: https://www.iowaview.org/dear-teachers-part-4-identify-local-natural-hazards-to-prevent-powerful-disasters/
Part 3: https://www.iowaview.org/dear-teachers-part-3-a-lesson-about-forestry/
Part 2: https://www.iowaview.org/dear-teachers-part-2-exploring-the-electromagnetic-spectrum/
Part 1: https://www.iowaview.org/dear-teachers-2025-a-review-of-av-teaching-resources/
