Structure Of The Atom, Rocks And Materials Flashcards
What are examples of natural disasters?
Earthquakes, volcanic eruptions, sinkholes
What are rocks made up of?
Different grains that fit together- made from 1 or more compounds
What are the compounds in a rock called?
Minerals
What is the texture of the rock?
The combination of different sizes and shapes of grains
What is interlocking? Example?
Grains that fit together with no gaps- granite
What is rounded grains? Example?
Grains that have gaps between them and are not as strong- Sandstone
What is the name for rocks that absorb water in the gaps?
Porous
What are the 4 layers of the earth?
Crust, mantle, outer core, inner core
What are igneous rocks?
Bits of molten rock that cools down and freezes
What is lava?
Magma that reaches the earth’s surface
What is the name for rocks that form from cooling lava?
Extrusive igneous rocks
What are intrusive igneous rocks?
Igneous rocks that form underground
What are metamorphic rocks?
Rocks that have been compressed or buried by movements of the earth and change minerals to form new crystals from the pressure and heat