Rocks
Rock that forms when layers of sediment and organic material harden
What is sedimentary rock?
The thin outer layer of the earth
What is the crust?
An inorganic substance found naturally on the earth
What is a mineral?
The ability of a mineral to resist scratching
What is hardness?
Granite, pumice
What is igneous?
Rock that formed from magma or volcanic lava
What is igneous rock?
The center of the earth is called...
What is the core?
A mineral that can be cut and polished for use
What is a gemstone?
The way a mineral reflects light
What is luster?
Shale, limestone
What is sedimentary?
Rock formed by heat and pressure deep below the earth's crust
What is metamorphic rock?
Most of the earth's mass is in the ...
What is the mantle?
These are found on the surface of the earth or buried in the earth's crust in rocks or in veins
What are minerals?
The color of the mark made when a sample is rubbed on a harder surface
What is streak?
Marble, slate
What is metamorphic?
The person who studies the structure of rocks and minerals of the earth
What is a geologist?
A substance made of things that were never alive
What is inorganic?
The orderly arrangement of particles that make up a mineral is called...
What is a crystal?
A hard, natural substance made of one or more minerals that contain organic materials
What is coal?
Which is igneous rock? Conglomerate, obsidian, slate
What is obsidian?
The waters stirred up great amounts of dirt and particles that would settle into layers as the water receded.
How was the Flood a major contributor of the formation of sedimentary rock?
The loose material on the earth in which plants can grow
What is soil?
This scale is used to determine the hardness of a mineral
What is the Mohs scale?
Some minerals can also be ______
What are metals?
toothpastes, fertilizer, pottery, glass, paint
What are uses of minerals?