The Rock Cycle
A student found a rock in the desert that was mixed with clay, gravel, and sand. What type of rock did the student find?
A) Sedimentary
True or False: Rocks are made up of minerals.
True
What is the difference between a rock and a mineral.
Rocks have two or more materials and minerals have one material. Rocks are made from minerals.
A rock where smaller pieces of rock combine
What is sedimentary?
When sediment is dropped off in a different location
What is deposition?
The process by which rocks can transform into different rocks.
What is the rock cycle?
What is a hardness scale?
a scale that tests the hardness of a mineral by scratching other materials
How are rocks classified?
Rocks are classified by how they were formed.
Rocks formed from melting and cooling
Igneous Rocks
Diamond has a hardness of 10, a waxy luster, is pale blue in color, and streaks white. Using this information, why are diamonds widely used in the construction industry?
B) A diamond's hardness makes it a good tool to cut other materials.
If a scientist found a rock that was formed from heat and pressure, how would this rock be classified?
What is Metamorphic?
What is luster?
how light reflects or interacts with the surface of a mineral
When a rock is weathered, eroded, deposited, compacted, and cemented, which type of rock is formed?
Sedimentary
The way a mineral looks when it breaks apart.
What is cleavage?
DAILY DOUBLE!!!
This is a naturally occurring, solid, that is non-living, mostly of one substance, and has a crystal structure.
What is a Mineral?
This rock is found in places that have volcanos?
Igneous Rock
DAILY DOUBLE!!!
A scientist wants to identify what type of mineral she has. What are the 3 properties she should test for her to find out?
She should look at the streak, hardness, and luster
Granite is an igneous rock. It is formed by what processes.
Melting (molten magma) and cooling
Which way is the least useful when identifying a mineral?
color
What is the hardest mineral?
diamond
When sediments get compacted and cemented, like coquina rock, it forms what type of rock?
sedimentary rock
Two minerals are the same hardness, color, and luster. What other test can be done to help identify the minerals?
Do a streak test.
a) When heat and pressure are applied to any rock, it forms what type of rock? b) What is one way that you can identify this kind of rock?
a) metamorphic rock and b) squiggly lines
What is lava called when it is below the surface of the Earth?
Magma
Mount Etna in Italy is the largest active volcano in Europe. The Italians that live near Mount Etna use rocks to make stairs and buildings. What type of rock are they using?
Igneous Rock