Volcano Hunters Unit Assessment

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The US Geological Survey uses a nationwide volcano alert system to categorize volcanoes into 4 warning levels- Normal, Advisory, Watch, and Warning. They are used to notify the public about the likelihood of an eruption. Scientists are monitoring a stratovolcano that is currently labeled with a WATCH warning level. Their data from the past 3 months is shown in the photos. The team must decide whether to change the current warning level. What should they do?

• They should raise the warning level to Warning. The data shows that the volcanic activity is increasing.
• They should lower the warning level to Advisory. The data shows that the volcanic activity is decreasing.

When rain, snow, water, wind, or chemicals break down rock into smaller pieces

• Law of Horizontality
• Geology
• Weathering

Little pieces of rock and dirt that are broken off by weathering

• Weathering
• Sediment
• Erosion

This cycle describes the processes and conditions that cause rock to change type

• Sediment
• Rock Cycle
• Erosion

When sediments are moved by wind, rain, water, or other processes

• Law of Horizontality
• Rock Cycle
• Erosion

When sediments are deposited in a new location.

• Geology
• Deposition
• Index Fossil

What processes caused the sandstone butte to change over time?

• Heating and Pressure
• Weathering and Erosion

This image shows a subduction zone at a convergent plate boundary. Describe what is going on at location 1.

• Layers of magma cooling to form a volcano
• Material from the crust is cooling as it slips down into the mantle

This image shows a subduction zone at a convergent plate boundary. Describe what is going on at location 2.

• A magma chamber is forming from pressurized magma trapped between plates
• Material from the crust is cooling as it slips down into the mantle