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26 Cards in this Set
- Front
- Back
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What is transpiration?
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When water is released from leaves into the air.
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What is condensation?
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The change of state from a gas to a liquid
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What is evaporation?
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The change of state from a liquid to a gas
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What is collection?
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When water flows across land and collects in rivers, streams, lakes and eventually the ocean.
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What is precipitation?
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When liguid or solid water falls from clouds - for example, rain, snow, sleet, and hail are all forms of precipitation.
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What measures relative humidity?
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A sling psychrometer
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What measure rainfall?
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A rain guage
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What measures air pressure?
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Barometer
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What measure wind direction?
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Wind vane
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What measures wind speed?
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an anemometer
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Which temperature of air holds more amount of water? Hot or cold?
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Hot (because the molecules of the air is more spread out - so there is more space to hold water)
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Which type of air holds the most amount of water? Humid or Dry?
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Humid! (Humid means there is a lot of water in the air)
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Describe stratus clouds.
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Low, layer clouds
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Describe cumulus clouds.
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Puffy white clouds with a flat bottom.
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Describe cirrus clouds.
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High, Feathery clouds
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What has to be present in air for a cloud to form other than water vapor?
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DUST! - the water needs something to cling to in order to form clouds.
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What does relative humidity refer to?
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It is the amount of water the air contains compared to the maximum amount of water it can hold at a certain temperature.
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If you areusing a sling psychrometer, and there is a huge drop in temperature, what does that mean about the amount of water already in the air.
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There isn't much water at all. That's why so much can evaporate off the wet thermometer, lowering that thermometer's temperature.
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What role does the sun play in making wind?
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The sun heats the earth unevenly - creating hot and cold areas which eventually leads to wind.
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What role does pressure play in making wind?
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When low pressure air rises, high pressure air rushes in to replace it - creating wind.
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Is the air pressure low or high at the equator? (Gold house only)
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Low
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What role does radiation play in making wind?
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The sun heats the earth through radiation.
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What role does conduction play in making wind?
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Heat from the core heats the rocks which conducts heat to the air close to the ground.
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What role does convection play in making wind?
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Low pressure (and low density) air rises, high pressure (and high density) falls. This is a convection current. The movement of the air feels like wind.
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Explain how clouds work.
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1. Sunlight warms the Earth's surface and evaporates water.
2. As the water vapor rises with the warm air into the atmosphere, the water vapor collects and the air becomes saturated with water. 3. The water vapor cools and condenses into liquid water around dust particles. 4. All these condensed water droplets together form a cloud. If the clouds get too heavy with condensed water, the water falls to the ground as percipitation (rain, snow, sleet or hail). |
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Explain (briefly) the steps of the water cycle.
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1. Evaporation
2. Condensation 3. Percipitation 4. Collection Do you know what happens in each of these steps? |
