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29 Cards in this Set
- Front
- Back
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Polaris
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the North Star
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Ptolemy popularized the _________________ model of the universe.
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geocentric
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axis
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the imaginary rod that stretches through Earth between North and South Poles
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Energy of motion
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Kinetic energy
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revolution
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complete orbit around the Sun
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The hardest mineral is a__________.
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diamond
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A device used to make work easier
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machine
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The fixed point around which a lever turns
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fulcrum
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Stored energy
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Potential energy
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terrestial planets
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planets with features like Earth's
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The Moh's scale can be used to estimate the _________ of a mineral.
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hardness
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The most common type of "energy factories" on Earth are___________.
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green plants
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Name the five properties used to test a mineral.
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color, luster, streak, hardness, and cleavage
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Rotation
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spinning of the Earth on its axis
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A simple machine made up of 2 wheels that turn around the same point
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wheel and axle
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A metal from which metals can be removed
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ore
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A wheel around which a rope or chain is passed
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pulley
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The transfer of energy through solids
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conduction
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Magma that reaches Earth's surface
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lava
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True or False:Pluto is always the farthest planet from the Sun all the time.
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False
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What is the most common type of sand?
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quartz sand
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An inclined plane that moves
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wedge
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the transfer of energy by waves
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radiation
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The transfer of energy through fluids by moving particles
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convection
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energy
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the ability to cause change
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Molten rock material formed deep in the Earth
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magma
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A simple machine that is made up of a bar that turns around a fixed point
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lever
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A simple machine with a sloping surface
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inclined plane
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meteor
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piece of rock that enters Earth's atmosphere and then burns up
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