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Day 8

Day 8. What are the two types of igneous rocks?. Intrusive and extrusive. What's the difference between the them?. Intrusive forms inside the Earth. Extrusive forms outside the Earth. Daily Warm-Up Exercises. 1. Salol Crystals (Part 2, steps 11-18). Investigation 8 One Rock to Another.

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Day 8

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  1. Day 8 What are the two types of igneous rocks? Intrusive and extrusive What's the difference between the them? Intrusive forms inside the Earth. Extrusive forms outside the Earth. Daily Warm-Up Exercises 1

  2. Salol Crystals (Part 2, steps 11-18) Investigation 8 One Rock to Another 2

  3. What are some of the variables that might affect the size of the crystals that form? Variables • Temperature • Rate of cooling • Length of time in hot water • The way the bottle lies as it cools

  4. Crystal Size Investigation 1. Each group will get 2 bottles of salol. 2. Place both bottles in hot water to melt. 3. Place one bottle on its side in ice water and the other bottle on its side in room temperature water. 4. Observe and record every 30 seconds. 5. Compare the crystals in the two bottles when all the material has crystallized. Procedure: 4

  5. Data Table 5

  6. Observations – Draw what you see Include measurements w/ units! 6

  7. Day 10 • What variable(s) do you think affect the size of crystals in igneous rocks? • What forces are constantly shaping and reshaping Earth’s surface? (Hint: constructive/ destructive, use resource book) Daily Warm-Up Exercises

  8. Day 10 • What variable(s) do you think affect the size of crystals in igneous rocks? Cooling Rate Daily Warm-Up Exercises

  9. Day 10 What forces are constantly shaping and reshaping Earth’s surface? (Hint: constructive/destructive, use RB p.100-103) Earth processes are going all the time. Destructive processes break down landforms. These include weathering, erosion, and tectonic plates sinking and melting. Constructive processes build up. They include mountain building, deposition (sedimentation), and new crust formation. Daily Warm-Up Exercises 9

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