Our Future Home

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Across
  1. 2. what has developed in our homes?
  2. 4. what was the house humans made during the iron age?
  3. 6. what were the problems with these homes?
  4. 7. What was the earliest home?
Down
  1. 1. How many forms of energy are there?
  2. 3. what is the unit for energy?
  3. 5. why have we built our homes we more floors?