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Earth Science: Test1

QuestionAnswer
(T/F) The inner most 4 planets of our solar system are geologically similar to earth. True
How big is the radius of the earth? 6,370
The orbit of our earth is ______ (closer/farther) to the sun than the orbit of mars closer
Volcanic eruptions teach us that the interior of the earth is .... a. contains liquid, molten rock b. very hot, possibly thousands of degrees c. geologic activity is far from over d. all of the above d. all of the above
Name 4 spheres of earth 1. Biosphere 2. Geosphere 3. Atmosphere 4. Hydrosphere
Define Mineral 1. Naturally occurings 2. Chemical Composition 3. Definite arrangement of atoms 4. Plain external surface
Which chemical element is the most abundant in minerals of earths crust carbon && oxygen
How many minerals exist on earth? 3000-5000
(T/F) Even though most of the earths crusts are made up of the same 8 elements, the minerals can look and feel very different True
Name a mineral that is particularly heavy Galena
Name a mineral that is usually metallic/grey Graphite
Of the substances, pick those that are NOT crystalline Coal Mineral oil Osbidean
Which 3 of these minerals are most abundant at the surface, near VA beach, or riverbeds k-spar calcite clay minerals
3 most basic type of rock sedimentary igneous metamorphic
which rocks originate from crystillization of a melt? granite basalt
The most abundant volcanic rock is... basalt
The most abundant intrusive igneous rock is... granite
If lava flow cools too fast for crystals to form, it becomes... obsidean
If lava cools quickly and foams up because a lot of gas, its called... pumice
Which of these igneous rocks is usually light colored? rhyolite
which of these igneous rocks are usually dark colored? granite
At what temperature do rocks melt? 1000
Name a mineral that is particularly hard Quartz
Which mineral is used in toothpaste? Floride
Can porous volcanic rock such as basalt contain important ore deposits of, say, copper and gold? Yes
Created by: 728147570
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