Across
- 3. what do hurricanes need to survive? (two words)
- 6. describe the skies on a high pressure day
- 8. a one word description of the sun
- 10. these occur only at cold fronts
- 14. element name of Si
- 16. when a species is brought to a new biome, often causing damage
- 17. wind is caused by differences in _______radiation
- 19. stars and all the other matter in a galaxy are held together by this
- 20. this occurs wavelengths of the spectrum get longer, indicating that stars are moving away from us (two words)
- 21. adaptations occur over ___________ generations
Down
- 1. increased population density and decreased food sources would both result in this
- 2. near what latitude to most hurricanes form?
- 4. element name of Mg
- 5. where do the chemicals you spray on your lawn eventually end up?
- 7. warm water, magma, air does this
- 9. what does the Big Bang theory state is currently happening to stars and galaxies (two words)
- 11. when plants are growing high above the forest floor, what are they reaching for?
- 12. describe the speed of the river flow on a steep slope
- 13. the temperature of the stars in the upper right of the H-R diagram
- 15. during the day, the land temperature is _________than the water
- 18. lines close together on a topo map indicate the terrain is what?
- 19. a system of strs, gas, and dust held together by gravity