Science

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Across
  1. 2. the age of universe according to the big bang theory.
  2. 3. The hypothesis stating that the solar system formed from a collapsing cloud of gas and dust.
  3. 4. This theory explains planet formation through the merging of small objects into larger bodies.
  4. 5. according to the oscillating universe theory this event marks the contraction paste of the universe.
  5. 7. in the nebular hypothesis this became the center of the solar system.
  6. 8. the small bodies that collided and merged to form planets in the protoplanet hypothesis.
  7. 9. A theory proposing continuous creation of matter to maintain a uniform density in the expanding universe.
Down
  1. 1. This theory suggest the universe goes through cycles of expansion and contraction.
  2. 5. The theory that describes the universe's origin from a singular point of immense energy.
  3. 6. A theory that suggest planets were captured by the sun as it moved through space.