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Charlie Lindgren's students work on Activity 2.2
Reading the Shapes of Volcanoes

For the past two weeks we've been studying volcanoes. As a culminating activity we attempted Activity 2.2 Page 35 of the "Mars Team Online" Guide. In addition to measuring with protractors we also used the NIH imaging software and the 8 bit black and white camera.

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"We used many types of sand . . . " . . . from coarse . . . "
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". . . to an ooze of . . . " . . . Butterscotch!
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. . . We measured the slope . . . . . . and found the circumference.
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To check our work we also digitally photographed our "cinder cones." Using NIH Imaging Software we were able to color the black and white image to make it look like a volcano, and measure the angle to the nearest .01 of a degree!!
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Then we measured the angles of volcanoes on Earth . . . . . . and Venus!
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Then we tried to "get a sense" for what different angles were by walking up different slopes . . . . . . ranging from shallow . . .
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. . . to steep!


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