Rock Cycle
All the rocks in the world used to be...
molten/lava
Is a metamorphic rock allowed to melt?
No
What does sedimentary rock sometimes contain?
Fossils
Volcanoes
What is the hardest substance on earth?
Diamond
What is Geology?
The study of rocks
Why don't metamorphic rocks contain fossils?
They can't survive the high heat, pressure, and compression
What is sediment?
Little pieces of rock, bone, and minerals
What are the two forms of Igneous rock?
Extrusive and Intrusive
Which rock type is the softest/weakest?
Sedimentary
Which rock cycle has alternating bands of light and dark minerals?
Metamorphic
What 2 things cause a rock to turn Metamorphic?
Heat and pressure
What is it called when a sedimentary rock has a lot of little rocks "glued" together?
Conglomerate
Igneous comes from the word for?
Fire
Earth's crust is made from _______ plates?
Tectonic plates
Which rock type often has layers?
Sedimentary
What happens to a metamorphic rock if there is too much heat and pressure?
How is sedimentary rock formed?
Sediment is compacted and cemented (pressure)
How is Igneous rock formed?
The cooling of magma or molten lava
What is the process when wind, rain, water, or ice removes tiny bits of rock from larger rocks?
Which type of rock is the Moon made out of?
Igneous
What are two examples of metamorphic rock?
Marble, gneiss, slate
What are two examples of sedimentary rock?
conglomerate, shale, chalk, clay, limestone, rock salt, coal, siltstone
What are 2 examples of Igneous rock?
Basalt, obsidian, granite, pumice
What rock type is the upper portion of Earth's surface made from?
Igneous rock