Unit 6 vocab

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Across
  1. 2. cold and windy biome, low biodiversity
  2. 3. used by body to make vitamin D, blocked by sunscreen
  3. 5. not as cold as tundra, many evergreen trees
  4. 7. besides abstinence, best way to avoid STIs
  5. 8. pigment that helps protect from sun's rays
  6. 9. saw sunspots, Venus phases, Jupiter's moons, got in trouble
  7. 10. a collection of ecosystems with similar climate, animals, plants
Down
  1. 1. covers most of the Earth, density 1.03 g/mL
  2. 3. emitted by "black" light. Not blocked by sunscreen
  3. 4. discovered scientific method; smoked, pork, turkey varieties
  4. 6. second most common STI in Philly