wf vocab ch5 sci

Question 1

pegmatites

Answer 1

igneous rocks with extremely large-grained minerals

Question 2

kimberlites

Answer 2

rare, ultrabasic rocks formed only under very high pressure

Question 3

vesicular texture

Answer 3

rocks that have holes formed by gas bubbles giving it a spongy appearance

Question 4

porphyritic

Answer 4

rocks with large, well-formed crystals

Question 5

intrusive

Answer 5

igneous rocks forming underground

Question 6

Extrusive

Answer 6

igneous rocks forming above ground

Question 7

basaltic rocks

Answer 7

igneous rocks with dark color and having lower silica content

Question 8

granitic rocks

Answer 8

igneous rock with light color and having higher silica content

Question 9

texture

Answer 9

a rocks size, shape, and distribution of its crystals or grain

Question 10

fractional crystallization

Answer 10

process where the first mineral to crystallize was the last to melt

Question 11

Bowens reaction series

Answer 11

the predictable pattern of minerals crystallizing from cooling magma

Question 12

partial melting

Answer 12

process where some minerals melt at low temperatures, while others remain solid

Question 13

lava

Answer 13

magma that flows out onto Earth’s surface

Question 14

igneous rocks

Answer 14

rocks formed from cooling magma or lava