Earth
The thin outer layer of the earth is called the _____.
What is the Crust?
The hot melted rock that makes up the mantle of the earth is called ________.
What is lava?
A _______ studies the structure, rocks, and minerals of the earth.
What is a geologist?
An organic substance found naturally in the earth is called _________.
What is a mineral?
The color of the mark made when a mineral is rubbed on a harder surface is called the ________.
What is streak?
Most of earth's mass is in the _______.
What is the mantle?
Rock that forms when layers of sediment and organic material harden is called ______.
What is sedimentary rock?
True or False-Weathering produces small bits of weathered rock called humus.
What is False?
True or False-If a substance is a mineral it cannot be a metal.
What is False?
The center of the earth is called the ______.
What is the Core?
Rock formed by heat and pressure deep below earth's crust is called ______.
What is metamorphic rock?
Rock formed from magma or volcanic lava is called ____.
What is igneous rock?
The ability of a mineral to resist scratching is called __________.
What is hardness?
The Mohs Scale is used to determine the hardness of __________.
What are stones?
A substance made of things that were never alive is ________.
The movement of sediment from one place to another is called _______.
What is erosion?
_________ is a type of sedimentary rock.
Slate, Obsidian, Limestone
What is obsidian?
A mineral that can be cut and polished for use is called a _________.
What is a gemstone?
The characteristic of a mineral to break along smooth, straight lines into flat sheets is called the _____.
What is the cleavage?
________ is the loose material on the surface of the earth in which plants can grow.
What is soil?
A rock like substance that forms from decayed plant matter is called __________.
Limestone, Coal, or Slate
What is coal?
A hard natural substance made of one or more minerals that contain organic materials is called ______.
What is a rock?
Where are minerals usually found?
Where is rocks beneath oceans and rocks that form the continents.
Gemstones that are beautiful and rare are called _________ stones.
What are precious?