The rock cycle

9.Which of the following is an example of an extrusive igneous rock that cools so rapidly it may form a natural glass?

10.Match each rock type with the correct formation process.

11.Arrange the following steps in the correct order for the formation of an igneous rock from a sedimentary rock via the rock cycle.

12.Which of the following are types of sedimentary rocks? (Select all that apply)

13.A sample of rock is found to contain fossils of marine organisms and has a granular texture with visible grains cemented together. The rock is most likely:

14.Which of the following processes are involved in the formation of sedimentary rocks? (Select all that apply)

15.Obsidian is an extrusive igneous rock that cools so rapidly it forms a natural glass.

16.Match each rock type with its typical grain size description.

17.Arrange the following events in the order they occur during the formation of a metamorphic rock from an igneous rock.

18.Which type of rock is formed from the cooling and solidification of magma?

19.A student measures the density of three rock samples: A (2.6 g/cm³), B (2.9 g/cm³), C (3.2 g/cm³). Which sample is most likely to be basalt (density ~3.0 g/cm³)?

20.A student collects a rock sample that has a glassy texture and no visible crystals. Which type of rock is it most likely to be?

21.Regional metamorphism is caused by the heat of an igneous intrusion.

22.Which of the following is the driving force behind the rock cycle?

23.Sedimentary rocks can only form from the lithification of fragments of other sedimentary rocks.

24.Arrange the following steps in the correct order for the formation of a sedimentary rock from an igneous rock via the rock cycle.

25.Match each rock type with the correct description of its formation.

26.Arrange the following steps in the correct order for the formation of a metamorphic rock from a sedimentary rock via the rock cycle.

27.Which of the following are types of metamorphism? (Select all that apply)

28.The rock cycle is driven by plate tectonics and the water cycle.

29.A rock sample has a fine-grained texture and contains small crystals visible only under a microscope. It was formed from lava that cooled quickly on Earth's surface. This rock is most likely:

30.Which of the following is an example of a biogenic sedimentary rock?

31.Arrange the following events in the order they occur during the formation of an igneous rock from a metamorphic rock via the rock cycle.

32.A student finds a rock with a coarse-grained texture and large, visible crystals of quartz, feldspar, and mica. The rock is most likely:

33.Which of the following are examples of biogenic sedimentary rocks? (Select all that apply)

34.Contact metamorphism occurs when rocks are heated by nearby magma without being melted.

35.A rock sample has a glassy texture and no visible crystals. It was most likely formed by:

36.A student is testing a rock sample with dilute hydrochloric acid. The rock fizzes vigorously, releasing carbon dioxide bubbles. Which type of rock is the student most likely testing?

37.Regional metamorphism typically produces foliated rocks due to directed pressure.

38.Place the following steps in the correct order for the formation of a metamorphic rock from an igneous rock via the rock cycle.

39.Which of the following is the process by which rocks are broken down into smaller fragments by exposure to the atmosphere?

40.Complete the sentence: The process by which rocks are broken down into smaller fragments by exposure to the atmosphere is called ___.

41.What is the name of the process by which rocks are changed physically or chemically due to high temperatures and pressures?

42.Fill in the blanks: The rock cycle is driven by two main forces: ___ and the ___.

43.The rock cycle operates over millions of years. If a process takes 50 million years to complete one full cycle, how many cycles could occur in 2.5 billion years?

44.Explain the difference between contact metamorphism and regional metamorphism.

45.A granite sample contains 40% quartz, 30% feldspar, and 30% mica by mass. If the sample mass is 500 g, what is the mass of feldspar in grams?

46.Complete the sentence using the correct terms.

47.Describe one way in which the water cycle contributes to the rock cycle.

48.Fill in the blanks to describe the rock cycle.

49.Name the type of metamorphism that occurs when a body of rock comes into contact with an igneous intrusion.

50.What type of rock is formed from the lithification of sediment?

51.What is the name of the process by which rocks are broken down into smaller fragments by exposure to the atmosphere?

52.Describe how plate tectonics drives the rock cycle.

53.Explain how the Wilson cycle relates to the rock cycle.

54.Describe the difference between contact metamorphism and regional metamorphism.

55.Explain how the Wilson cycle (plate tectonics) drives the rock cycle. Include at least two specific processes that transform rocks.

56.The rock cycle operates over millions of years. If a process takes 50 million years to complete one full cycle, how many cycles could occur in 2.5 billion years?

57.A granite sample contains 40% quartz, 30% feldspar, and 30% mica by mass. If the sample mass is 500 g, what is the mass of feldspar in grams?