Ice Ice Baby!

1234567
Across
  1. 1. A Hanging Piece of Ice
  2. 3. A large mass of floating frozen water
  3. 4. A cupboard for keeping things cold
  4. 5. An appliance for making frozen cubes of water
  5. 6. A bag filled with frozen material used to keep things cold
  6. 7. Frozen Creamy Treat
Down
  1. 2. A sharp pointed instrument used to break up frozen things
  2. 3. Boots with a thin metal bar
  3. 4. A covering of frozen matter over a large area, especially on the polar region of a planet
  4. 6. A glacial episode during a past geological period