From melted minerals that have cooled and hardened
100
List three materials sedimentary rocks can be made of
sand, silt, mud, clay, fossils, remains of plants, pebbles, gravel
100
What does the word metamorphic mean?
meta = change morphic = form
100
How can a metamorphic rock turn into a sedimentary rock?
weathering
100
What do all rocks have in common?
They are made from minerals
200
If igneous rocks are formed from magma what size crystals do they have?
Large
200
How are sedimentary rocks formed?
from rock fragments becoming cemented together, or from minerals dissolved in water/water evaporates rock is left or from the remains of living things.
200
How do metamorphic rocks differ from the original rocks they came from?
they are harder and denser
200
How can an igneous rock turn into a metamorphic rock?
under heat and pressure
200
In which two rocks can you find minerals?
igneous and sedimentary
300
Where are igneous rocks commonly found?
Near volcanoes
300
Where are sedimentary rocks normally formed/found?
underwater
300
How are metamorphic rocks formed?
existing rock under heat and pressure
300
How can a sedimentary rock turn into an igneous rock?
melting
300
How are igneous and metamorphic rocks similar?
formed from heat, contain minerals
400
Name two igneous rocks
granite, basalt, pumice, obsidian
400
Name two sedimentary rocks
conglomerate, sandstone, shale, coal, rock salt, limestone
400
Name two metamorphic rocks
gneiss, marble, shist, slate, quartzite
400
How can an igneous rock turn into a sedimentary rock?
weathering
400
What is the name of the specialist who studies rocks?
Petrologist
500
What are the two categories of igneous rocks?
intrusive/extrusive
500
What are the two categories of sedimentary rocks?
clastic/nonclastic
500
Name one rock and then the rock it becomes after experiencing extreme heat and pressure
shale ------ slate
limestone ------ marble
500
How could a sedimentary rock turn into a metamorphic rocks?