experiment 11 the surface of the moon
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Experiment 11: The Surface of The Moon. Why Does the Moon Look that Way?. First, a meteor impacts lunar surface. This displaces part of the Moon’s surface, pushing it up higher than the rest Other material spreads away from edge: rays

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Presentation Transcript
why does the moon look that way
Why Does the Moon Look that Way?
  • First, a meteor impacts lunar surface.
  • This displaces part of the Moon’s surface, pushing it up higher than the rest
  • Other material spreads away from edge: rays
  • Sometimes, molten rock falls back in to center of crater creating an isolated mountain or central peak
  • Maria: special consideration…
maria
Maria
  • If it’s a particularly big meteor, the impact cracks open the Moon’s crust
  • Lunar magma! It seeps out through cracks and fills in crater, creating a smooth, dark sea.
so how old is this stuff
So How Old is This Stuff?
  • No erosion on moon…
  • Assuming a constant rate of meteor impact, the more craters a thing has, the older it is
how did the moon form some theories
Theories of Moon formation.How Did the Moon Form?Some Theories…

CAPTURE THEORY

Earth gravitationally captured a passing asteroid

SISTER THEORY

Moon formed right alongside Earth

FISSION THEORY

Earth was spinning so fast, Moon spun off

giant impact theory
Giant Impact Theory
  • A large body smashed into Earth! BAM!
  • Resulting impact melted surface of Earth and sent material flying into space
  • Most of this stuff was from crust and mantle
  • This stuff eventually coalesced into the Moon

WHY DO SCIENTISTS BELIEVE THIS?

CHEMICAL COMPOSITION OF MOON!

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