Investigate Metamorphic Changes
Standard S6E5
Name:___________________________________________ Date:______________ Pd:_________
How can pressure and temperature change a solid? (Write all responses in complete sentences.)
Procedure
1.
Use crayon shavings of four different colors. Mix the shavings.
2.
Use your hands to warm the shavings, and then squeeze them into a wafer.
What Do you Think?
1.
Describe what happened to the wax shavings.
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2.
How do the changes you observed resemble metamorphic changes in rocks?
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Challenge
What changes that occur in metamorphic rocks were you unable to model in this experiment?
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Extended Response Questions
3.
Explain why some minerals only occur in metamorphic rocks.
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4. If you had two metamorphic rocks, one that had garnet crystals and the other had chlorite crystals, which one could have formed at a deeper level in the Earth’s crust? Explain your answer.
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Reading in Content Area Questions (1 st and 4 th )
1. What is an index mineral? Explain how index minerals allow a scientist to understand the history of a metamorphic rock.
(Use evidence from the text to support your claim.)- page 108
2. Which do you think would be easier to break, a foliated rock, such as slate, or a nonfoliated rock, such as quartzite? Explain.
(Use Evidence from the Text)-page 109 and 110
3. What causes deformation (folds and bends) in metamorphic rock? (Use evidence from the text to support your claim
(response). Page 111