Layers in Time Post-Assessment 

Grand Canyon National Park

Distance Learning Program

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1. Thank you for participating in Grand Canyon's Distance Learning Program! Please fill in the information below so we can help improve our programs to meet your needs.
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2. Rocks are broken up into three major groups:
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3. Which rock forms from melted rock - either from magma below the Earth's crust or from lava above it?
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4. Metamorphic rocks form deep inside Earth from other types of rocks. Which forces produce metamorphic rocks?
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5. Mud, silt, and sand are all:
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6. The concept that the Earth's upper layer, or crust, is divided into large, rigid segments which are in motion is termed:
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7. The three types of boundaries between the Earth's plates are named:
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8. The plates of the Earth move because of:
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9. Which major river begins in the Rocky Mountains in Colorado and ends in the Gulf of California in Mexico?
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10. Erosion can be caused by which of the following? Check all that apply
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11. Which of the following are erosion processes? Check all that apply.
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