Types of Rocks
What are the three types of rocks?
Sedimentary, metamorphic, and igneous.
What is the rock cycle?
The rock cycle shows us how rocks can break, change, and form different rocks overtime.
You can see this characteristic just by looking at the rock/mineral.
Name 2 ways people use rocks.
What is the hardest mineral?
Diamond
These are little pieces of rocks, pebbles, shells, sand etc. that will eventually form rocks.
Sediments
Magma needs to _____ and ______ to form an igneous rock.
cool and harden.
To group things based on how they are similar. EXAMPLE: all of my rocks are in one group because they are round and grey.
Where are rocks extracted/ removed from?
The surface of the earth.
How long can it take for one rock to go through the entire rock cycle?
What is the definition of rock?
A hard object made of one or more minerals.
What is the first step of the rock cycle?
Sediments (they are pushed down by water to make sedimentary rocks).
Name 3-5 characteristics we can use to describe rocks around us.
- Colour
- Luster
- Shape
- Texture
- Size
- Rarity
How can removing and using rocks and minerals help and hurt our environment?
- Help: Rocks and minerals help make so many things around us! They are used for jewelry, metals and cars, pavement etc.
- Hurt: Digging up trees and plants, dust and pollution in the air.
A geologist.
What is needed for a sedimentary rock to form?
Water! It pushes sediments down to make sedimentary rocks.
What turns an igneous rock back into sediments?
Weathering! Rain, snow, wind, tornadoes, thunder etc.
The way light reflects/ the SHINE of a rock or mineral is
luster
What is the process of taking rocks out of the earth called?
Mining
What are crystals?
Solids that are found inside of minerals.
Metamorphic rocks need these two things to form.
Heat and Pressure.
What is MOLTEN rock?
Bonus: What are the two types of molten rock?
Molten rock means melted rock!
The two types of molten rocks are lava and magma. Magma is found deep inside of the earth and lava is outside.
Where can you find the mineral fluorite?
Fluorite is found in toothpaste!