Across
- 4. the change from gas to liquid such as water vapor changing to rain
- 7. global winds that flow toward the poles from the west or east between 30° and 60° north or south latitude
- 10. weather front that develops when cold air moves up under warm air and causes colder temperatures; sometimes thunderstorms
- 11. the middle and coldest layer of the atmosphere
- 17. weather tool that measures wind speed
- 19. local winds that are created by the uneven heating of the land and ocean; these will reverse from day to night
- 20. a group of the same species that live together
- 22. all of the living organisms in an ecosystem
- 23. biome made of trees called conifers that are shaped like needles
- 25. organisms that produce their energy from the sun
- 28. a symbiotic relationship in which one organism benefits and the other organism is not affected
- 29. the lowest and densest layer of the atmosphere where all weather occurs
- 31. organisms that that get their energy from breaking down dead materials
- 32. diagram that shows the loss of energy in an ecosystem beginning with the producers and ending with the top predator
- 33. a symbiotic relationship in which one organism benefits and the other organism is harmed
- 34. type of cloud that forms at high altitudes and appear thin and wispy; they may contain ice crystals
- 35. the variable in an experiment that causes something to change
- 36. weather front in which a cold air mass meets a warm air mass meet and remain in place pushing against each other without moving for several days
- 37. global winds in both hemispheres that blow from 30° latitude to almost the equator
- 38. global winds that are formed as cold, sinking air moves from the poles to 60° north or 60°south latitude
- 40. trade winds in both hemispheres that meet around the equator where there is very little wind
- 42. weather tool that measures temperature
- 44. cloud that may produce a strong thunderstorm
- 45. the measure of the force of the atmosphere pressing down on earth's surface
- 46. organisms that eat other organisms for energy
Down
- 1. biome that has very cold temperatures and where the ground is always partially frozen
- 2. all of the nonliving parts in an ecosystem
- 3. weather front that forms when a warm air mass is caught between two cold air masses
- 5. a symbiotic relationship in which both organisms benefit
- 6. all of the abiotic and biotic elements of a specific area
- 8. the layer of the atmosphere that slowly blends with outer space where there is no atmosphere
- 9. weather front where warm air slowly moves over cold air, temperatures will warm and drizzly rain may occur
- 12. the transfer of thermal energy in a circular motion through a liquid or gas
- 13. the warming of the earth due to the gases in earth's atmosphere
- 14. type of cloud that layers the sky like a blanket and often blocks out the sunlight
- 15. web diagram that shows the feeding relationships between organisms in an ecosystem
- 16. the variable in an experiment that may change due to the introduction of something new
- 18. the mixture of gases that surrounds earth and keeps the planet warm
- 21. the "hottest" layer of the atmosphere
- 22. weather tool that measures air pressure
- 24. a possible explanation or educated guess about the outcome of an experiment
- 26. biome that has the most diversity of organisms on the planet
- 27. the apparent curving of the path of global winds due to earth's rotation
- 30. biome that is mostly covered by grasses and home to grazing animals that travel in large herds
- 31. information gathered from observing what occurs in an experiment
- 39. the layer of the atmosphere in which most of the ozone can be found
- 41. biome that is very dry and hot where little rain fall will happen
- 43. type of cloud that are large, white, and puffy usually seen during fair weather
- 44. all of the populations of species that live in the same area