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