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

"We used many types of sand . . .	" . . . from coarse . . . "
". . . to an ooze of . . . "	. . . Butterscotch!
. . . We measured the slope . . .	. . . and found the circumference.
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!!
Then we measured the angles of volcanoes on Earth . . .	. . . and Venus!
Then we tried to "get a sense" for what different angles were by walking up different slopes . . .	. . . ranging from shallow . . .
. . . to steep!

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