Show:
igneous rock formations
volcanoes
plate tectonics
earthquakes
mystery
100
What is magma that squeezes into rock layers vertically.
What is a "Dike".
100
What is an opening in the Earth's crust that erupts gases, ash, and lava.
What is a volcano.
100
What is Alfred Wagner's theory that the continents drifted away from each other.
What is "continental drift".
100
What is the movement of plates.
What is the cause of a fault.
100
What was used to map the ocean floor.
What is Sonar.
200
What is magma that squeezes into a crack that runs parallel to rock layers.
What is "sill">
200
Lava destroys everything in its path. Falling ash can bury people and buildings and interfere with airplanes in flight.
What is the effect of a volcanic eruption.
200
What is the name that Alfred Wagner came up with to call the land form when all of the continents were one land mass.
What is "Pangaea".
200
The fault that occurs at a transform boundary.
What is a strike slip fault.
200
What island was destroyed in 1883 by a volcano.
What is Kracatauea
300
what is the formation when a volcano stops erupting and is eroded away and the hardened magma is left.
What is a "volcanic neck".
300
What is the most active volcano in the world.
What is Mt. Kilauea.
300
Scientists started using Sonar and found that the ocean floor was not flat, and there were signs of volcanic and earthquake activity.
What is the evidence of seafloor spreading.
300
The breaking point of an object.
What is the elastic limit.
300
When magma reaches the surface of a volcano and flows out of an opening called a...
What is a vent.
400
After an eruption, the volcano can collapse which produces a large circular depression.
What is a Caldera.
400
Sulfur gas from the volcanic mixes with water vapor in the air and acid rain forms. Vegetation, lakes, and streams nearby the volcano are impacted, plants die and animals are forced to leave their habitats.
What is the environmental impact of a volcanic eruption.
400
Similar rock structures have been found on more than one continent.
What is the rock evidence of continental drift.
400
The place where an earthquake occurs.
What is the epicenter.
400
What is a steep depression formed of hardened igneous rock around a vent.
What is a crater.
500
What is hardened magma that comes to the surface of a volcano and forms domes.
What is a batholith.
500
What island did the Mid-Atlantic Ridge form.
What is Iceland.
500
what year did Alfred Wagner come up with the name Pangaea.
What is 1912.
500
What is located under the epicenter.
What is the focus.
500
How many plates are there.
What is 13 plates.