How are rocks classified?
How they are formed, texture, and composition .
What type of rock used to be another rock, but has changed and is flatter or smaller?
Metamorphic Rocks
What type of rock looks gray, black, white, or tan and also appears to be spongy?
Igneous Rocks
What are the three types of rocks?
Igneous, Sedimentary, and Igneous
What type of rock has a layer or bedding?
Sedimentary Rocks
What is the first step of the rock cycle?
Molten magma is pushed up from the mantle.
This describes the geological process that forms rocks.
Rock Cycle
The powdered color remaining after the mineral is dragged across a white tile.
Streak
Who created the Hardness Scale for minerals?
Moh
How many levels are there in the Hardness Scale we use?
10
How do we observe minerals?
Color, luster, cleavage, fracture, streak, and hardness
How many questions do scientists ask in order to determine if a substance is a mineral?
4
How many main minerals do we need to know?
21
Define Luster:
The way a mineral reflects light by being metallic or nonmetallic.
Uneven, rough surface pattern of a mineral
Fracture