Small pieces of material that come from living things or fragments of other rocks
What is sediments?
100
Coal is formed from ____________
What is preserved plant material?
100
An igneous rock containing small crystals is most likely an __________
What is extrusive rock?
100
If you wanted to test the hardness of a mineral, you would use a ___ test.
What is scratch?
200
A coarse, porous, extrusive rock that floats on water and is used for cleaning and polishing is called ______
What is pumice?
200
The steps in the formation of sedimentary rock in proper sequence.
What is erosion, deposition, compaction, and cementation?
200
Rock salt, made of the mineral halite, is an organic sedimentary rock. A deposit of rock salt is most likely to be formed when ____________
What is a solution of halite and water evaporates?
200
When magma cools slowly, coarse-grained igneous rock form with ___________ crystals.
What is large?
200
If you strike a mineral Quartz with a hammer, it will shatter into many smaller pieces. This is an example of ______.
What is fracture?
300
An extrusive igneous rock that forms when tectonic plates on the ocean floor pull apart and magma is released and cooled.
What is basalt?
300
Organic sedimentary rock
What is coal?
300
All the following are uses of sedimentary rock except:
arrowheads, The White House, or chalkboards
What are chalkboards?
300
When magma has high silica content ________ rocks form.
What is light colored?
300
If a mineral has a mass of 45g and a volume of 9ml, what is its density?
What is 5?
400
When igneous rock breaks through existing sedimentary rock layers, this event is known as _____.
What is intrusion?
400
Remains or traces of ancient plants and animals that are preserved in rock are called ____________
What are fossils?
400
If you rake up a pile of dead leaves in your yard, you have created a pile of ______ matter.
What is organic?
400
If you climbed to the top of Stone Mountain, you would be standing on ______________.
What is granite?
400
Shelly found a dark colored rock on the beach of Hawaii. Based on what you know about silica content affecting the color of rocks, the silica content of this rock is likely ________.
What is low?
500
An extrusive igneous rock that forms quickly without crystals that has appearance of black glass.
What is obisidian?
500
A rock formed from the cementend of transported grains
What is a clastic rock?
500
The size of crystal grains in an igneous rock is called ______.