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,

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Presentation transcript:

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 Sometimes, molten rock falls back in to center of crater creating an isolated mountain or central peak Maria: special consideration…

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.

Name the Features

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

Theories of Moon formation. How Did the Moon Form? Some Theories… SISTER THEORY Moon formed right alongside Earth FISSION THEORY Earth was spinning so fast, Moon spun off CAPTURE THEORY Earth gravitationally captured a passing asteroid

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!