Find the word

1234567
Across
  1. 2. is sometimes wet but sometimes dry
  2. 4. 50% of Australia’s landscape.
  3. 5. in deserts it normally gets 500mm of water.
  4. 6. are all sand and mostly dry
  5. 7. cover 18% of Australia's mainland
Down
  1. 1. aren't usually hot
  2. 3. are very hot
  3. 6. cover 1.37 million kilometers