Rock that forms when melted rock cools and hardens.
What is igneous rock?
200
Igneous rocks that form underground have _______crystals.
What is larger?
200
True or False- different rocks weather at different rates/why or why not?
TRUE
(depends on hardness/climate/environment)
200
True or False- All soil comes from weathered rock.
True.
300
The color of the powder left behind when you rub a mineral against a rough white tile.
What is streak?
300
This rock is formed by cemented sediment.
What is sedimentary rock?
300
What are the ways igneous rocks can be classified?
By where they were formed, the size of the crystals, the different amount and kinds of minerals found in them.
300
This is the process of wearing away and removing sediment by wind, water, or ice.
What is erosion?
300
Small pieces of dcayed plant and animal matter.
What is hummus?
400
The way a mineral's surface reflects light. it can be metallic (gold, silver) or non-metallic (or dull, glassy, pearly, waxy).
What is luster?
400
The process in which sediment settles out of water or is dropped by the wind.
What is deposition?
400
A conglomerate sedimentary rock is formed by sand, rounded pebbles, and larger pieces of rock. Where do you think this rock would be formed?
a. a volcano
b. the top of a hill
c. in a river
d. in a desert
c. in a river
400
True or False-after weathering and erosion, sediment CANNOT become sedimentary rock again.
False.
400
True or False-Soil contains minerals.
True-the type of mineral depends on the type of rock the soil is formed from.
500
A mineral's ability to resist being scratched.
What is hardness?
500
This type of rock is changed by heat and pressure.
What is metamorphic rock?
500
Sedimentary, igneous and metamorphic rocks can all become this type of rock as long as presure and heat are present.
What is metamorphic?
500
The continuous process in which one type of rock changes into another.
What is the ROCK CYCLE?
500
If all soil comes from weathered rock, all soil contains _______________________.