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| 2. | A metric temperature scale on which water freezes at 0 degrees and boils at 100 degrees. |
| 3. | When the sky is overcast and covered with clouds. |
| 4. | The sound emitted by rapidly expanding gases that has been heated by lightning. |
| 5. | The mixture of gases, mainly nitrogen and oxygen, which surrounds the Earth's atmosphere. |
| 7. | The study of weather. This science is concerned with the atmosphere and its phenomena, particularly of its variations of heat and moisture, of its winds, storms, etc. |
| 12. | A violent, whirling storm with sustained winds of 74 miles per hour or greater and usually very heavy rain. This storm system has an eye at its center, where the weather is calm and pleasant. |
| 13. | A storm accompanied with lightning and thunder. |
| 15. | The gases that surrounds the earth. On Earth, this mass of gases is divided into several layers and is composed mainly of nitrogen (78%) and oxygen (21%). |
| 17. | The violent shaking of the ground due to sudden changes in the earth's crust and may cause destruction to buildings. |
| 18. | The movement of air from areas of high pressure to areas of low pressure. |
| 20. | A feeling of slight coldness. |
| 21. | Condensed water vapor in the air just above the earth's surface. |
| 22. | A form of energy. This can be transferred between two systems when a difference of temperature exists. |
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| 6. | Having heat in a moderate degree, not cold or hot. |
| 9. | The conversion of a liquid to a gas. |
| 10. | Current weather where there is very little or no moisture in the air. |
| 11. | A unit of temperature measurement on a scale such as Celsius or Fahrenheit. |
| 14. | Ice crystals that form on the grass and other surfaces during a very cold evening. |
| 15. | The weight of air of the atmosphere pressing down on Earth. (2 words) |
| 19. | Water vapor in the atmosphere that condenses and falls from the sky to earth. |
| 23. | An instrument used for measuring the weight or pressure of the atmosphere. Weather forecasters generally use the mercury version of this instrument. |
| 24. | A strong current of air with speeds from 25 to 75 miles per hour. |
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