Across
- 1. The ratio of the mass of a substance to its volume.
- 3. A warm air mass that forms between about 23.5 degree north latitude and 23.5 degree south latitude.
- 4. Bands of high-speed winds about 10 kilometers above Earth’s surface.
- 8. A small storm often accompanied by heavy precipitation and frequent thunder and lightning.
- 12. Moving away temporarily from an area about to be affected by severe weather.
- 13. An instrument that measures changes in air pressure, consisting of a glass tube partially filled with mercury, with its open end resting in a dish of mercury.
- 15. The distance in degrees north or south of the equator.
- 20. The percentage of water vapor in the air compared to the maximum amount of water vapor that the air can contain at a particular temperature.
- 21. A swirling center of low air pressure.
- 23. A dry air mass that forms over land.
- 25. A high-pressure center of dry air.
- 26. A huge body of air that has similar temperature, humidity, and air pressure at any given height.
- 27. An instrument used to measure relative humidity.
- 28. Elevation above sea level.
- 32. A measure of cooling combining temperature and wind speed.
- 33. The amount of water vapor in a given volume of air.
- 35. The boundary where unlike air masses meet but do not mix.
- 36. An instrument used to measure wind speed.
- 37. The flow of air from land to a body of water.
- 38. Winds that blow over short distances.
- 39. The horizontal movement of air from an area of high pressure to an area of low pressure.
- 40. A line on the weather map that joins places that have the same temperature.
- 41. A tropical storm that has winds of about 119 kilometers per hour or higher.
Down
- 2. A “dome” of water the sweeps across the coast where a hurricane lands.
- 5. The process by which molecules at the surface of a liquid absorb enough energy to change into gas.
- 6. Scientists that study the causes of weather and try to predict it.
- 7. A sudden spark, or energy discharge, caused when electrical charges jump between parts of a cloud, between nearby clouds, or between a cloud and the ground.
- 9. An instrument used to measure changes in air pressure.
- 10. The continual movement of water among Earth’s atmosphere, oceans, and Earth’s surface.
- 11. Cut off, as in a front where a warm air mass is caught between two cooler air masses.
- 14. An instrument that measures changes in air pressure without using a liquid.
- 16. A line on the weather map that joins places that have the same air pressure.
- 17. A violent disturbance in the atmosphere.
- 18. The effect of Earth’s rotation on the direction of winds and currents.
- 19. A cold air mass that forms north of the 50 degree north latitude or south of the 50 degree south latitude and has high air pressure.
- 22. The change of state of a gas to a liquid.
- 24. The flow of cooler air from over an ocean or lake toward land.
- 29. The pressure caused by the weight of a column of air pushing down on an area.
- 30. Winds that blow steadily from specific directions over long distances.
- 31. A rapidly spinning column of air that reaches down to touch Earth’s surface.
- 34. A humid air mass that forms over oceans.