Ch. 5 IgneousMagma Characteristics Extrusive Intrusive Misc. Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy

$100 Question from H1 These type of rocks are formed by the crystallization of magma

$100 Answer from H1 Igneous

$200 Question from H1 Magma that flows out onto Earth’s surface.

$200 Answer from H1 lava

$300 Question from H1 Fine-grained igneous rocks that cool quickly on Earth’s surface

$300 Answer from H1 Extrusive Igneous Rocks

$400 Question from H1 Coarse-grained igneous rocks that cool slowly beneath Earth’s surface.

$400 Answer from H1 Intrusive Igneous Rocks

$500 Question from H1 The latin word “ignis” stands for this term that describes lava flows.

$500 Answer from H1 FIRE

$100 Question from H2 In the laboratory, rocks must be heated to 800 to 1200 degrees Celsius before they do what?

$100 Answer from H2 Melt.

$200 Question from H2 This compound affects melting temperature and also impacts how quickly magma flows

$200 Answer from H2 Silica or SiO 2

$300 Question from H2 Which type of rock mainly composes land AND has a lower melting point, GRANITE or BASALT?

$300 Answer from H2 Granite

$400 Question from H2 The process by whereby some minerals melt at low temperatures while others remain solid.

$400 Answer from H2 Partial Melting

$500 Question from H2 Increased pressure, temperature, and water content all cause the melting point of a substance to do what?

$500 Answer from H2 Decrease

$100 Question from H3 These rocks, like granite, are light-colored, have high silica content, and contain quartz and the feldspars.

$100 Answer from H3 Felsic

$200 Question from H3 The classification of rocks like peridotite and dunite, that have low silica content and very high levels of iron and magnesium.

$200 Answer from H3 Ultramafic

$300 Question from H3 The classification of rocks like gabbro which are dark colored, have lower silica contents, and are rich in iron and magnesium.

$300 Answer from H3 Mafic

$400 Question from H3 The slower lava cools, the ________ the crystal size.

$400 Answer from H3 Larger!

$500 Question from H3 The type of crystal texture a rock has where it has large, well-formed crystals surrounded by finer-grained crystals of the same or different minerals

$500 Answer from H3 Porphyritic

$100 Question from H4 The quartz containing felsic rock Obsidian is Extrusive or Intrusive?

$100 Answer from H4 Extrusive

$200 Question from H4 The rock Granite is extrusive or intrusive?

$200 Answer from H4 intrusive

$300 Question from H4 Ryolite is extrusive or intrusive?

$300 Answer from H4 Extrusive

$400 Question from H4 Gabbro is extrusive or intrusive?

$400 Answer from H4 Intrusive

$500 Question from H4 What is the most common intrusive rock?

$500 Answer from H4 Granite!

$100 Question from H5 Name one of the three types of magma.

$100 Answer from H5 Rhyolitic, andesitic, basaltic

$200 Question from H5 The process opposite of partial melting, where the minerals that melt at highest temperatures are the first to crystallize.

$200 Answer from H5 Fractional crystallization

$300 Question from H5 Whose reaction series illustrates the relationship between cooling magma and mineral formation?

$300 Answer from H5 Bowen’s

$400 Question from H5 Name one way geologists classify rocks

$400 Answer from H5 Mineral compositions Grain size texture

$500 Question from H5 Minerals that contain a useful substance that can be mined at a profit.

$500 Answer from H5 Ores

Final Jeopardy This type of magma has the highest Silica content.

Final Jeopardy Answer Rhyolitic magma