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Science Unit 4-Common Assessment #2

  •  English    34     Public
    earth science
  •   Study   Slideshow
  • Why are some constellations able to be seen during certain seasons?
    The Earth's revolution (orbit) around the sun only allows for some of the constellations to be seen at any one time
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  • How long does it take for the moon phases to go through one cycle?
    About a month or 4 weeks
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  • What do we call the spinning of the earth on its axis?
    rotation
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  • What causes the sun to set and makes day turn into night?
    The Earth rotates from west to east, making the sunrise and sunset each day.
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  • Do constellations change postition in the sky throughout the night?
    Yes, due to the earth's rotation it seems like the constellations are moving across the sky during the night.
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  • What makes the sun appear to move across the sky during the day?
    The earth's rotation makes the sun appear to move throughout the day.
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  • What is revolution?
    the movement of one object around another
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  • What is one way you could model craters forming on the moon?
    Drop droppers full of water onto a pan of flour. Can you think of another?
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  • What are minerals?
    crystals that make up rocks
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  • What does the "1" hardness rating of talc mean?
    It is a very soft mineral.
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  • What does the "10" hardness rating of a diamond mean?
    It is a very hard mineral.
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  • What is weathering?
    Anything that breaks apart rocks
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  • What kind of rock has layers of sediment that get cemented together under pressure?
    sedimentary rock
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  • When a rock is exposed to very high temperatures and pressures and it changes into a new kind of rock, what kind of rock will it become?
    a metamorphic rock
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  • What is a renewable resource?
    a resource that can be replaced quickly or easily
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  • What is a nonrewable resource?
    Resources that cannot be replaced easily or can never be replaced.
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