Down
| 1. | The prefix given to clouds in high altitudes. |
| 2. | Clouds form when ____ takes place. |
| 4. | 
A towering vertical cloud. Often produces lightning and heavy precipitation. |
| 6. | 
A type of cloud high in the sky, which usually are seen as a signal of precipitation in the future. They are thin and are usually arranged in patterns. |
| 7. | 
Thick dark low altitude rain clouds. The Sun is completely blocked out of the sky. |
| 8. | 
Thick gray low altitude clouds that represent dry weather. |
| 10. | 
Puffy, gray, middle-level clouds that can grow into rain clouds. |
| 11. | 
Thin and wispy clouds that are high in the sky. They are often formed ahead of a storm (usually an advancing warm front). These clouds are thin enough that the sun and moon can usually shine light through them. |
| 16. | A mass of condensed water vapor, which floats in the air as tiny ice crystals. |
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Across
| 3. | ____ altitude clouds are cirrus, cirrocumulus, and cirrostratus clouds. |
| 5. | 
These clouds are thinner than the cirrostratus clouds, and mean that stormy weather is coming soon. They are below the cirrus, cirrocumulus and cirrostratus clouds. |
| 6. | A Latin word that means "a pile". |
| 7. | A Latin word that means "rain". |
| 9. | ____ altitude clouds extend from the ground up to a mile and a half above the ground. They are the stratocumulus, stratus, and nimbostratus clouds. |
| 12. | If ____ is added to the beginning (or nimbus added to the end) of a word, the cloud is producing precipitation. |
| 13. | A cloud (normally a low stratus cloud), which is very close or in contact with the ground. |
| 14. | A Latin word that means "middle". |
| 15. | 
Piled up or lumpy clouds. A type of cloud that develops vertically in the sky. (2 words) |
| 17. | 
Clouds that are high in the sky and can be a sign that precipitation is on the way. They are usually thin and often have a fibrous appearance. |
| 18. | A Latin word that means "layer". |
| 19. | 
Layered or stratified clouds. (2 words) |
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