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100
Name the three layers of the earth.
Crust, mantle, and core
100
What causes earthquakes, volcanoes and uplift to Earth's surface?
Movement of the Earth's plates -- Plate Tectonics
100
Give two examples of erosion.
Water carrying sediment down a river, wind blowing soil across a field, people moving soil that sticks to their shoes, etc.
100
What is weathering?
Weathering is the breaking down of material on Earth's surface.
100
About how long does it take for a glacier to carve a valley?
Thousands of years
200
What creates mountains and valleys? Name two things.
Volcanoes, earthquakes, and uplift
200
List 2 "safe spots" to be during an earthquake.
Doorway, against walls, away from windows, under a desk, protect your head, etc.
200
What type of erosion move the most rock and material on the Earth's surface?
Water
200
What causes the most weathering on the Earth's surface?
The Sun
200
What is a fault?
A fault is a crack in the Earth's crust that allows the crust to slip.
300
Hot rock is forced out of a volcano. When it cools, what does it form?
Mountains
300
What kind of valley does a river form?
V-shaped
300
Why should scientist predict earthquakes?
So they can warn others, and people can get to safety
300
What does MYA stand for?
Million Years Ago
300
Islands and new lakes are formed by what?
Volcanoes
400
Name the ocean the Ring of Fire circles.
The Pacific Ocean
400
What would be a good way to model what happens when there is a flood?
Pouring water over some sand or soil
400
What is used to predict earthquakes and volcanoes?
A seismograph
400
What is a hypothesis?
an educated guess
400
What shape are old mountains?
Rounded
500
Why might a person see lots of rocks on mountain roads in the spring time?
Ice or snow had melted and is no longer holding the rocks into place.
500
Why could an arch be considered dangerous?
Weathering and erosion could cause the arch to collapse.
500
What is a sign of ice erosion?
Cracks in rocks and loose soil
500
What forces resulted in the Grand Canyon? Name two.
Weathering, erosion, and uplift
500
A mountain is becoming smaller over many years. What could be causing this?
Erosion