Galilean Moons Lab
Submission InstrucTonsFollow the directions in the Galilean Moons Lab. The Galilean Moons Labfle provides in±ormation about how to complete this lab. A±ter you have completed all o± your work according to the laboratory instructions, re±er to General Lab Instructionson how to submit your work ±or grading. Step 1:Save this fle ±or your answers to the questions in this lab.Step 2: Delete the Questions ±rom this document. Your fle will be checked by TurnItIn and the questions will be identifed as plagiarism. I only need to see your answers.Step 3:Type up your answers to all questions ±ound in this lab making sure to correctly number your answers to correspond to the questions in the lab.Step 4: Per±orm the observation, and record the observation and the necessary data.Step 5:Save the fle with your answers. Title your document “Galilean MoonsLab”, including your frst and last name, ex.Galilean_Moon_Lab._CC_Student.Step 6: Submit your assignment answers as an attachment to this dropbox as either a .doc or .rt± fle. See the General Lab Instructions ±or the document ±ormats that are acceptable.DELETE THE INSTRUCTIONS ABOVE AND THE QUESTIONS BELOW (leave the roman numerals to identi±y which questions you are answering) BEFORE YOU SUBMIT YOUR WORK TO THE GALILEAN MOON LAB DROPBOX.**Please be sure to include proper citations for all sourced material, including the textbook.QuesTonsPart I: Properties of the Galilean Satellites I.1. Considering just the average densities in the table, (a) which Galilean moon would you expect to have the most ice (i.e., the least rock/iron(b) which moon could be all rock and iron, with no ice on the sur±ace? I.2. Can you think o± another moon in the solar system that is also “phase locked” with the planet that it orbits? What is its name? Part II: Io — The Jovian Cauldron II.1. The dark spots are volcanoes. Make a rough count o± the number o± volcanoes in the image. http://www.jpl.nasa.gov/galileo/sepo/II.4. The scale ±actors S ±or the insets o± Figure 3 are about 10 km per millimeter. Measure the height o± the plume o± Pillan with a ruler, and determine its actual physical height. Convert this height to meters (1 km= 1,000 m) (1mm = 1x 10^-3m).
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II.5. What does this tell us about the materials that build up inside Io compared with the magmas that feed volcanoes on Earth? II.8. If such eruptions occur at random over the surface every 6 months, estimate how many years it would take to resurface the moon. II.9. Do you see any impact craters on any of the Io pictures? Explain your observation. II.10 Is Io’s surface young or old?Part I: Europa — Water World? III. 2. Does it look like the contaminants come from below or from above Explain.III.3. Which moon has the older surface? Explain your reasoning. III.4. Given the similar appearance of the two small craters, what can you conclude about the material properties of water/ice at Europan temperatures and those of basalt? III.5. What does the peculiar appearance of this large impact structure on Europa suggest about its crust of ice? Do you think it is frozen solid all the way through? What do you think happened to the impactor that made Tyre Macula? III.6. Could there be just a thin layer of ice over a liquid ocean today? What is the evidence in Figure 8 that the chaos terrain froze over relatively recently? (Millions rather than billions of years ago.) III.8. What di± culties do you think life in a hypothetical European ocean would have to overcome in order to survive? Part IV: Ganymede — The Giant Moon IV.1. For the Moon, which is older, the lighter or darker regions? IV.2. Looking at the close up of the dark region in Figure 10, how do the craters on the icy surface of Ganymede change as they get older? IV.3. What has happened to the crust in the blown-up image of the light region in Figure 11? IV.4. For the cases of (a) San Francisco Bay and (b) Ganymede, describe how the higher-resolution images change our interpretation of the surfaces ofthese two regions.
