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1. | ![](https://www.edhelper.com/clipart/clouds4.jpg) 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. |
2. | If ____ is added to the beginning (or nimbus added to the end) of a word, the cloud is producing precipitation. |
3. | Clouds form when ____ takes place. |
4. | ![](https://www.edhelper.com/clipart/clouds10.jpg) Layered or stratified clouds. (2 words) |
7. | ____ altitude clouds are cirrus, cirrocumulus, and cirrostratus clouds. |
8. | ![](https://www.edhelper.com/clipart/clouds2.jpg) 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. |
12. | ![](https://www.edhelper.com/clipart/clouds5.jpg) 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. |
13. | A mass of condensed water vapor, which floats in the air as tiny ice crystals. |
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5. | ____ altitude clouds extend from the ground up to a mile and a half above the ground. They are the stratocumulus, stratus, and nimbostratus clouds. |
6. | The prefix given to clouds in high altitudes. |
9. | The prefix given to clouds from around an altitude of 6,000 feet to 20,000 feet. |
10. | ____ altitude clouds form most of the active weather system and are the altocumulus and altostratus clouds. |
11. | ![](https://www.edhelper.com/clipart/clouds9.jpg) Thick gray low altitude clouds that represent dry weather. |
14. | ![](https://www.edhelper.com/clipart/clouds8.jpg) Thick dark low altitude rain clouds. The Sun is completely blocked out of the sky. |
15. | A Latin word that means "a pile". |
16. | A Latin word that means "layer". |
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