How Deep Is The Ocean?

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Across
  1. 4. A place that no one has explored or mapped yet
  2. 5. Something we don’t understand well. It feels magical or secret
  3. 6. A very deep cut or hole in the ocean floor
Down
  1. 1. The force that pushes on things. In the ocean, pressure gets stronger the deeper you go
  2. 2. A soft, low light just before it gets dark. In the ocean, it’s a zone with little light
  3. 3. A place that is so deep and dark, it looks like it has no end