Chain Crosswords Long Nature Easy — Set 7

Easy 11×11 Set 7
1
2
3
4
5
6
Across
  1. 3. Change from solid to liquid
  2. 5. A word related to science
Down
  1. 1. Hard tissue in the skeleton
  2. 2. Iron oxide formed by corrosion
  3. 4. A word related to science
  4. 5. Plant embryo in a protective coat
  5. 6. Underwater ridge of coral