WorksheetsEH Inv 5 & 6 Review
Total questions: 12
Worksheet time: 6mins
There is an area in Idaho called Craters of the Moon, where most of the ground is covered with basalt, a black igneous rock with no visible crystals. Which statement best describes how the rocks likely formed in this area? (Mark the one best answer.)
The rocks cooled slowly below ground, and tiny crystals formed.
The rocks were under tremendous heat and pressure, so no crystals formed.
The rocks cooled quickly above ground forming crystals too small to see.
Basalt rocks do not form crystals, no matter how they cooled.
How can an understanding of plate tectonics help humans minimize hazards caused by earthquakes and volcanoes? Select all that apply.
By predicting the time and location of earthquakes and volcanic eruptions
By identifying high-risk areas and implementing safety measures
By preventing the movement of tectonic plates
By eliminating the occurrence of earthquakes and volcanoes
A student shared an igneous rock he bought that has beautiful fish and plant fossils in it. Another student gently pointed out that he may want to try to get his money back. How did the student know the rock was fake? (Mark the one best answer.)
A. Fish and plants don’t fossilize in the same rocks.
B. It is impossible for fossils to form in igneous rocks.
C. It is not legal to sell real fossils.
D. Igneous rocks don’t form underwater.
What is a limitation of this model? Explain how that limitation might affect someone's understanding of Earth's inner structure.
The model oversimplifies Earth's layers, which might lead to misunderstanding the complexity of Earth's inner structure.
The model accurately represents Earth's layers, providing a clear understanding of Earth's inner structure.
The model includes too many details, making it difficult to understand Earth's inner structure.
The model is outdated and does not reflect current scientific understanding of Earth's inner structure.
Which question is the best one to ask in order to learn how an igneous rock formed? (Mark the one best answer.)
What color is the rock?
What size are the crystals in the rock?
What is the rock made of?
How heavy is the rock?
What causes Earth's plates to move? Select each statement that identifies a cause of plate movement.
The plates are part of the lithosphere.
Different plates have different densities.
Convection currents flow in the asthenosphere.
Subducting oceanic plates pull plates apart.
New crust forms where two plates move away from each other.
Consider the following rock samples. Both samples are igneous rocks. Intrusive igneous rocks cool underground, while extrusive igneous rocks cool above ground. Which sample is an intrusive igneous rock, and which sample is an extrusive igneous rock? What feature of the rocks provides evidence to support your argument?
The left is intrusive, and the right is extrusive. The crystal size in the left is larger, indicating slower cooling underground.
The right is intrusive, and the left is extrusive. The crystal size in the right is larger, indicating slower cooling underground.
Both samples are intrusive because they have large crystals.
Both samples are extrusive because they have small crystals.
Volcanoes and earthquakes are often found near plate boundaries.
True
False
The continents are made of plates but not the sea floor.
True
False
ALL volcanic eruptions are caused by plate tectonics.
True
False
Scientists can predict where many volcanoes will erupt and earthquakes will occur.
True
False
All earthquakes are caused by plate movement.
True
False
