Lesson 9 | Igneous Rocks 🌋

By Will Pollard
Last updated over 3 years ago
26 Questions

🌋 Lesson 9 | Igneous Rocks 🌋

Objective: You will investigate the properties by which igneous rocks can be identified.

Rock Sample 1

1.

Using ESRT 6 "Scheme for Igneous Rock Identification" table to complete the data chart and identify rock sample 1.

Rock Sample 2

2.

Using ESRT 6 "Scheme for Igneous Rock Identification" table to complete the data chart and identify rock sample 2.

Rock Sample 3

3.

Using ESRT 6 "Scheme for Igneous Rock Identification" table to complete the data chart and identify rock sample 3.

Rock Sample 4

4.

Using ESRT 6 "Scheme for Igneous Rock Identification" table to complete the data chart and identify rock sample 4.

Rock Sample 5

5.

Using ESRT 6 "Scheme for Igneous Rock Identification" table to complete the data chart and identify rock sample 1.

6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.

Draw a graph the relationship of how the size of the mineral grains is affected by the rate at which molten rock material cools. (be sure to label each axis)

17.

How can you determine if an igneous rock has had an intrusive or extrusive origin?

18.

What is meant by a vesicular texture and how does it form in igneous rocks?

19.

Speculate on the reasons that samples of pumice are able to float in water.

20.

Describe the environment of formation for granite and basalt. Compare and contrast the two rock types.

21.

Analyze the data in the table above, and explain which rock is most likely granite.

22.

Incorporate Use the data for Rock 4 and the fact that it is fine-grained to determine the name of Rock 4.

23.

What relationship can be inferred from the graph above?

24.

Which is a true statement about granitic magma?

25.

Using your answer from questions #24 and #25, Hypothesize what an eruption would be like from a volcano with granitic magma.

26.

Use the following terms to create a concept map showing the relationship among position in Earth’s crust and mantle, crystal size, and rock type: fast, slow, slowest, intrusive, extrusive, magma, lava, granite, rhyolite, basalt, gabbro, obsidian, and pumice.

Example Concept Map: