Day 133: Eclipse Precision

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Astronomy students used theĀ NASA Eclipse site to investigate one solar and one lunar eclipse of their choosing that will occur later in this century. They figured out a point in the path of the umbra for the solar eclipse and a position on Earth for the lunar eclipse and then used Stellarium to view the eclipse. I am trying to impress upon them how predictable the universe is. The example shared here is for the August 21, 2017 eclipse as seen from South Carolina. Here is the animation (they love these and it shows the umbra and penumbra so well) and the details. The eclipse from Charleston will begin at 1:18 pm and totality will begin at 2:46. Below is the lunar eclipse, visible form the east coast in the early morning of April 15, 2014. Moon totally eclipsed from about 3:10 to 4:20 am.

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Day 132: The Big Grow 2014

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The Big Grow started with The Big Plant. Students in IS I worked in the greenhouse workroom, filling their pots with the soil mixtures they decided on, and planting their flower seeds. Pots were then placed in the adjoining roof top greenhouse. Although we have drip lines available, students will hand-water their plants and monitor water usage.

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Day 131: Not My Fault, Your Fault (Model)

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After our stratigraphy studies we move on to faults. I love telling them about left (sinistral) and right (dextral) lateral faults and the origins of the terms. Students build their own small models that they can manipulate to show normal, reverse, lateral, and oblique faults. They can easily see if the land lengthens or shortens and therefore what type of forces might cause the faulting. I always ask what happens to the river when flowing SW and there is a normal fault and it gives me a chance to say, “what did the fish say when it swam into the concrete wall? . . . . .

Day 129: Porosity and Permeability Mayhem

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Students in IS I are studying soils as part of their Big Grow 2014 and needed a clear way to understand porosity and permeability. I dusted off this lab that we have not done in over 10 years (when we used to teach Earth and Space Science and did a groundwater unit). I still use the columns for a beach sand lab where students determine settling velocity. Sometimes there are classic experiences in the classroom and this is one of them. I meant to take photos of the students but they had such trouble with the simple directions that I was putting out fires all period. I decided we will repeat the lab tomorrow to see if the results are different/more reliable.

Day 127: Plant Parenthood – The Big Grow

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Students in IS I are going to embark on a plant growing/marketing project. They will investigate soil classification, pH, porosity, and permeability in conjunction with growing annuals that they will sell in late May. All groups also run an experiment as part of the Big Grow, manipulating a variable such as the amount of fertilizer or the type of soil. The highlight of the introduction of the project was the visit to the rooftop greenhouse. Most students at the HS never get to see the greenhouse and many don’t even know we have one.