Volcanoes

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Across
  1. 2. Small pieces of rock blasted out of a volcano (5 letters)
  2. 3. Hot, melted rock that comes out of a volcano (4 letters)
  3. 5. The big opening at the top of a volcano (6 letters)
Down
  1. 1. Melted rock inside the Earth (5 letters)
  2. 2. in the crossword puzzle using the clues below.
  3. 4. The path magma takes to reach the surface (5 letters)
  4. 6. cloud A cloud of fine particles that comes from a volcano (8 letters)