Igneous Rocks
How does magma or lava turn into an igneous rock? (two words)
cools and crystalizes
What are sediments?
pieces of broken rocks
What are the three things you need to form a metamorphic rock?
Heat, pressure, a lot of time
what is molten rock?
magma/lava
Cold air ____ and hot air ______
sinks, rises
What type of igneous rock cools quickly?
Extrusive igneous rocks
What three processes happen when creating sediments?
Weathering, erosion, deposition
How many years does it take to form a metamorphic rock?
millions of years (a lot of time)
What does cementation mean?
gluing the sediments together
Is Te a metal, metalloid, or non-metal?
metalloid
Where are igneous rocks found? (there are two places)
in areas of volcanic activity and deep underground
What comes first, cementation or compaction?
compaction
What does a foliated metamorphic rock mean?
it has layers
what does weathering mean?
being worn down, breaking it down
Why do ice and wood float on water?
the density of the ice and the wood is smaller than the water
What is an example of an igneous rock?
granite, basalt
other rocks on top of the bottom layers and gravity
If I wanted to change a metamorphic rock back into an igneous rock, what would I have to do?
melt the metamorphic rock so it can turn into magma, magma cools and I get an igneous rock
what does compaction mean?
What is the process going on in the mantle called?
convection currents (hot material rises, cool material sinks)
how fast or slowly the molten rock cooled
Sedimentary rocks can have layers of different colors. Why?
What happens to the substances when they form a metamorphic rock?
Change into completely new and different substances
what is lithification?
process using compaction and cementation
What type of energy is happening when the spring on the diving board compresses?
Elastic energy