EM1
Name the three types of rocks
Igneous, sedimentary, metamorphic
what is strata?
layers in the sedimentary rock
describe the characteristic of marble
white colour, sugary texture
Name one two types of igneous rocks
granite, basalt
how long does it take to form sedimentary rocks?
millions of years
what is the temperature to form metamorphic rocks?
300 - 1470 fahrenheit
What is the oldest rock?
igneous
give two examples of sedimentary rocks
shale, sandstone, limestone, gympsum
can rocks turn into magma?
yes
What is considered mother of all rocks?
igneous rock
what is the process when the weight of sediment cause the bottom sediments to compress?
compaction
name three examples of metaphorphic rocks
Slate, marble, gneiss, schist, amphibolite, antgracite
What is the difference between magma and lava?
magma- inside volcano
lava- outside volcano
what is the process when sediments settle under water?
sedimentation
what is the least common rocks?
metamorphic rock
what happens when bubbles trapped in the rock during cooling?
form tiny holes in rocks
How does sedimentary rocks form?
compressed of sediments in the water
How does metaphorphic rocks form?
put igneous rocks/ sedimentary rocks under high pressure and high temperature
name two examples of igneous rocks
basalt, obsidian, granite, scoria, gabro, rhyolite
what are the uses of igneous rocks?
construction, cosmetic (body scrub)
what is cementation process?
salt crystals glue sediment layers together (sedimentary rocks)