Share Science Test #1 Practice
Save to Folder
Which layer of the earth is the thickest?
mantle
The thin outer layer of the earth is called the
crust
The center of the earth is called the
core
A _____ is an inorganic substance found naturally in the earth.
mineral
A substance made of things that were never alive is
inorganic
The 5 characteristics of minerals are
crystal structure, luster, hardness, color, and cleavage
The characteristic of a mineral to break along smooth, straight lines or into flat sheets is called
cleavage
The color of the mark made when a mineral sample is rubbed on a harder surface is called the
streak
__________ rocks are ones that are formed by heat and pressure deep below the earth's crust.
metamorphic
Rock that forms when layers of sediment and organic material harden is called
sedimentary
Rock formed from magma or volcanic lava is called
igneous
Name 3 uses for minerals
food, buildings, toothpaste, technology, jewelry, wires, etc.
Where are minerals usually found?
Some minerals are found on the surface of the earth. Most minerals are buried in the earth's crust.
A _______ studies the structure, rocks, and minerals of the earth.
geologist
Weathering produces small bits of weathered rock called
sediment
The movement of sediment from one place to another is known as
erosion
