Geology 101: Assignment

Geology 101—Lesson 2 Assignment

1. What is meant by "hydrogen is the simplest of all elements"?
Because hydrogen has an atomic number of only “1” which means it only has one proton in its nucleus and it is the only element with only one proton in its nucleus also has one electron

2. What must happen in order for an atom to lose its electrical neutrality?
In order for an atom to lose its electrical neutrality the protons and electrons would have to have an unequal number of positively charged protons versus negatively charged electrons must either gain or lose an electron

3. What is the fundamental difference between gases, liquids, and solids?
Although all three or
What is the difference between a "crystalline" solid and an "amorphous" solid (at the atomic level)?
The difference between crystalline and amorphous solids are that crystalline solid’s atoms are arranged in a repetitive pattern while amorphous solid’s atoms are not arranged in any repetitive patterns

5. Part 1. What are all atoms continuously doing, and how does this change as temperature rises? Atoms are always in motion and when the temperatures rises they speed up

Part 2. When testing the air pressure in your car's tires, will the pressure be different after driving 50 miles? Why or why not?
Yes, the pressure will be different. When driving the tires will begin to heat up which in turn heats up the air pressure in your tires. As this air pressure heats up it causes the pressure itself to
Look at figure 3.2 in your text. Shown is quartz with well developed crystal faces. Does quartz always grow to show crystal faces? Why or why not? -5% from quiz

9. Is quartz always “crystalline”? Why or why not?
Yes quartz is always crystalline because it has a repetitive atomic structure all minerals are, by definition, crystalline

10. What is cleavage? What causes it? Why doesn’t quartz have cleavage?
Cleavage is when a mineral breaks along an area of weak bonding. Stress causes cleavage. Quartz doesn’t have cleavage because quartz lacks any planes of weak bonding. when quartz breaks the pieces that break off have shapes that do not look alike, when a mineral has cleavage the pieces that break off all have the same shape

11. Can a mineral lacking cleavage still have crystal faces? Explain.
Yes a mineral lacking cleavage can still have crystal faces, take quartz for example it doesn’t have cleavage and can’t but it can have a crystal face cleavage and crystal form have independent causes

12. How many minerals (not elements) compose most of Earth's