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Scince prod

weather variables

Peter Dawson

on 9 January 2013

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Transcript of Scince prod

Dew point YOLO Air Pressure Humidity Have you ever seen water on your lawn in the morning even though it does not rain? That's dew! Dew occors when the air is saturated and can't take anymore mousture so the water clings to the surounding objects. Humidity in the air is made out of water vapor.
Humidity is caused during evaporation and prevents
sweating. It is measured using a hygrometer. Above is a graph showing how the air tempurture can effect how much water vapor the air can take. As the air tempurture increases, so does the air's ability to absorbe moisture. When the air can Peter Dawson Robert Syku Ashley Milone Temperature variables and how they affect the weather By Peter Dawson Thermometer A thermometer is the tool used to measure the temperature Consists of a sealed column of liquid such as mercury,which expands and contracts with temperature changes. The temperature being red at the top of the column which coincides with a calibrated scale. Parts of a thermometer Scale liquid that responds to temperature changes Glass container Bulb of mercury The sun is what creates heat About temperature Temperature changes happen with the unequal heating of earths surface Rising air leaves an area of low pressure towards the ground Cold temperature causes air to sink Falling air causes a high pressure zone towards the ground Warm air moves to take the space of cold air and same with cold air taking the place of warm air Moving air creates wind Temperature Effects Temperature Affects
Dew point
Air pressure
Wind Dew point because different temperatures hold different amounts of water Humidity because the amount of moisture to the temperature is how to measure Humidity Warm Cold Water Land Air pressure because warm air rising affects wind Wind because warm air rising and cold air falling creates wind When there is warm air, water evaporates and creates clouds Clouds Clouds act as a blanket trapping heat When clouds rain the weather is rainy Clouds form when water vapor collects Low temperature means low amounts of water and vise versa Wind is a big part of weather High temperature creates water vapor What is temperature? Temperature is how hot or cold it is. Temperature changes based on where you are, cloud coverage, season, and time of day. You might be colder if you where at a higher altitude or very far north or south Near the Equator you will be hotter then if you where further north or south because the equator gets more direct sunlight The temperature on any given day has a high and a low. The high usually in the afternoon and low during the night. Each day has an average high and average low and a record high and low Highs and lows High temperature warms the air causing the air to rise. air pressure is weight pushing down on the earth more molecules = more pressure. air pressure decreases as altitude increases. barometer applies to air pressure.
also, barometer help meteorologists predict the weather. air pressure measured in millibars. Humidity can be measured in several ways, but relative humidity is the most common. In order to understand relative humidity, it is helpful to first understand absolute humidity. Thanks For Watching John Tiseo Ashley Milone Weather Variables Peter Dawson Robert syku
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