WorksheetsIgneous Rocks Test Review
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
1. 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?
a)
The rocks cooled slowly below ground, and tiny crystals formed.
b)
The rocks were under tremendous heat and pressure, so no crystals formed.
c)
The rocks cooled quickly above ground forming crystals too small to see.
d)
Basalt rocks do not form crystals, no matter how they cooled.
2.
2. 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?
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.
3.
3. This layer drives the movement of tectonic plates.
a)
asthenosphere
b)
lithosphere
4.
4. The upper mantle is found in this layer.
a)
asthenosphere
b)
lithosphere
5.
5. Convection Currents happen in this layer.
a)
asthenosphere
b)
lithosphere
6.
6. Tectonic plates are in this layer.
a)
asthenosphere
b)
lithosphere
7.
7. Which question is the best one to ask in order to learn how an igneous rock is formed?
a)
What color is the rock?
b)
What size are the crystals in the rock?
c)
What is the rock made of?
d)
How heavy is the rock?
8.
8. Volcanoes and earthquakes are often found near plate boundaries.
a)
True
b)
False
9.
9. The continents are made of tectonic plates, but the seafloor is not.
a)
True
b)
False
10.
10. Different tectonic plates have different densities.
a)
True
b)
False
11.
11. New crust forms when two plates move away from each other.
a)
True
b)
False
12.
12. This rock is granite. It was formed inside Earth's crust, cooled slowly, and has large crystals. Which type of igneous rock is granite?
a)
Extrusive Igneous Rock
b)
Intrusive Igneous Rock
13.
13. This rock is pumice. It was formed on Earth's surface, cooled quickly, and has no visible crystals. Which type of igneous rock is pumice?
a)
Extrusive Igneous Rock
b)
Intrusive Igneous Rock
14.
14. Scientists have discovered that Mount Everest is growing taller by about 2 centimeters per year. What is a possible scientific explanation for this?
Solid black lines are plate boundaries.
a)
The Indian Plate and Eurasian Plate are converging and pushing the Himalaya Mountains upward.
b)
The Indian Plate is subducting under the Eurasian Plate, pushing the Himalaya Mountains upward
c)
The Eurasian Plate is subducting under the Indian Plate, pushing the Himalaya Mountains up.
d)
The Eurasian and Indian Plates are moving past each other, pushing the Himalaya Mountains up.
15.
15. Mountains of the British Isles and the Caledonian Mountains of Scandinavia have the same rock composition as the Appalachian Mountains. What does this tell us about the story of the past geology of this part of Earth?
a)
The three mountain ranges were never connected. North America and Europe were not near each other in Earth's history.
b)
The three mountain ranges were once connected. North America and Europe were much closer together in Earth's past.
16.
16. The image below represents which type of plate boundary.
a)
convergent
b)
divergent
c)
transform
17.
17. The image below represents which type of plate boundary.
a)
convergent
b)
divergent
c)
transform
18.
18. The image below represents which type of plate boundary.
a)
convergent
b)
divergent
c)
transform
19.
19. The slower an igneous rock cools, the larger the crystals.
a)
True
b)
False
20.
20. Obsidian is an igneous rock with a glassy surface and no visible crystals. It cooled
a)
above ground and slowly
b)
above ground and quickly
c)
below ground and slowly
d)
below ground and quickly
21.
21. Gabbro is an igneous rock with large visible crystals. It cooled
a)
above ground and slowly
b)
above ground and quickly
c)
below ground and slowly
d)
below ground and quickly
100 %
