Curious about the cave

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Across
  1. 1. What are sight, smell, taste and touch examples of?
  2. 3. What fills the air, described as fresh and slightly metallic
  3. 6. The ground underfoot in the cave
  4. 7. The faint sound of creatures hiding in the cave
  5. 9. The type of patterns the sunlight casts on the walls
Down
  1. 1. The material that feels like sandpaper against the fingers
  2. 2. The kind of light filtering through the cracks in the ceiling
  3. 4. Synonym for ‘old’
  4. 5. ‘Within the heart of the forest’ – what is another word for ‘heart’ in this phrase?
  5. 8. Name the fifth sense: sight, smell, taste, touch and …