Science

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Across
  1. 4. seperates inner/outer planets.
  2. 5. outer planets gas giants.
Down
  1. 1. clouds of ammonia on saturn and jupiter. cloud-layers clouds with altitude dictated by the atmospheric levels at which various gases condense into liquid/solid flakes
  2. 2. core is composed of liquid heavy metals.
  3. 3. a natural force of attraction exerted by a celestial bodu on the mass of objects that are on or near its surface