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How are Rocks Alike and Different - Chapter 6
Terms in this set (33)
Is a solid, nonliving material that forms in nature
Is something about an object that you can observe with your senses
Are small mineral or rock pieces
Is rock that forms when melted rock cools and hardens
Is rock that forms when small pieces of rock and other materials settle and get squeezed or cemented together
Is rock that ha been changed by heat or pressure
How many minerals are most rocks made from?
Two or more
What rock is not made from minerals?
What is coal made from?
It is formed from plants that lived millions of years ago
Name 7 kinds of properties. of rocks.
Color, Texture, Layers, Air Holes, Fossils, Shape, Size
True or False: Glassy rocks are made up of large grains.
False. Glassy rocks have no grains or grains too small to be seen.
How are rocks alike?
They are all made up of materials from the Earth's crust.
Name three types of minerals.
Copper, Quartz, Lead
Is the color of powder a mineral leaves behind when rubbed on a rough surface
Regardless of color, the minerals __________ is always the same
What causes a mineral to not leave a streak?
It is harder than the surface it is being rubbed against
What is the softest mineral?
What is the hardest mineral?
Name 7 kinds of properties of minerals.
Streak, Hardness, Magnetism, Cleavage, Luster, Reacts with Acid, Color
Breaking along smooth surfaces
Attract objects that contain iron
Is how a mineral's surface reflects light
Why is color alone not a good way to identify minerals?
Many different minerals have the same color.
Name the mineral that can be scratched by glass but not by a penny?
Where does magma escape from?
What is magma called on the surface of the Earth?
True or False: Most igneous rocks form underground?
What are the Andres Mountains in South American made from?
What type of rock comes from magma?
What type of rock is sandstone?
True or False: Sedimentary Rock often contains fossils.
If sandstone melts then hardens, what does it become?
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