rocks earth science

Question 1

rock

Answer 1

solid material in the Earth’s crust, natural combination of minerals or other materials.

Question 2

petrology

Answer 2

study of rocks

Question 3

metamorphic rocks

Answer 3

rocks that that result from changes to existing rocks.

Question 4

texture

Answer 4

how rocks look and feel

Question 5

grains

Answer 5

pieces and particles in rock such as mineral chrystals, and fossils in rock

Question 6

igneous rock

Answer 6

form from volcanoes

Question 7

pegmatite

Answer 7

rock containing large interlocking crystals

Question 8

porphyry

Answer 8

few large mineral grains appear set in a verry fine textured rock

Question 9

phanerite

Answer 9

simply mass of distinc mineral grains that small and more-or-less the same size.

Question 10

aphanitic

Answer 10

chrystals aret visible with your eyes

Question 11

scoria

Answer 11

sharp edged, sponge like rock. formed from basaltic lava

Question 12

pumice

Answer 12

has so many bubbles, floats like a cork. formed from felsic lava

Question 13

obsidian

Answer 13

formed from felsic lava glassy rock.

Question 14

non foliated metemorphic rocks

Answer 14

do not have bands or flaky layers.

Question 15

dynamic metamorphism

Answer 15

happened when conditions rapidly changed within rocks.

Question 16

rock cycle

Answer 16

old earth geologists think rock was recycled just like every other natural resource.