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weather and cloud
| Question | Answer |
|---|---|
| cumulus | puffy with flat bottoms and round tops that signal fair weather. |
| cirrus | wispy, feathery clouds made of ice crystals that form at high levels. |
| stratus | low-level layers with a fairly uniform grey or white colour |
| nimbus | rainy cloud flattened or spread out |
| fog | shows up when water vapor, or water in its gaseous form, condenses |
| anemometer | measures wind speed and direction |
| wind vane | for showing the direction of the wind |
| termometer | device that measures temperature |
| sling psychrometer | whirled in the air until the reading of the wet bulb thermometer reaches a constant value |
| barometer | instrument measuring atmospheric pressure |
| rain gauge | measuring the amount of rain which falls |
| weather map | a map showing the state of the weather over a large area |
| weather satellites | revolves around the earth and detects and reports weather patterns on the earths surface |
| weather radar | instrument that sends pulses of electromagnetic energy into the atmosphere to find precipitation |
| isorbar | lines on a weather map that join places of equal pressure |
| isotherm | lines of constant or equal temperature |
| cumulonimbus | heavy torrential downpours, hail storms, lightning and even tornadoes |
| relative humidity | a measure of the actual amount of water vapor in the air compared to the total amount of vapor that can exist in the air at its current temperature |