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2. Weather
DDMS 7th grade - Chapter 3, sec. 2-4
Question | Answer |
---|---|
Temperature | The measure of the average amount of energy in the particles of a substance |
Thermometer | An instrument used for measuring temperature |
Conduction | The transfer of thermal energy through two substances touching |
Convection | The transfer of thermal energy by the movement of a fluid |
Convection Currents | The upward movement of warmer fluid and the downward movement of a cooler fluid creating a circular motion |
Wind | The horizontal movement of air from an area of high pressure to an area of low pressure |
Anemometer | An instrument used to measure wind speed |
Sea Breeze | A local wind that blows from the water to the land |
Land Breeze | A local wind that blows from the land to the water |
Jet Stream | Bands of high speed wind that occur about 10 Km above the Earth's Surface |
Relative Humidity | The percentage of water vapor in the air, compared to the maximum amount that it can hold at a certain temperature |
Psychrometer | An instrument used to measure the relative humidity |
condensation | The process of the water vapor in the air becoming a liquid |
Dew Point | The temperature at which condensation begins |
Cirrus | Wispy, feathery looking clouds, that form at high levels in the atmosphere |
Cumulus | Fluffy, round-looking clouds, that form less than 2 km from the ground |
Stratus | Clouds that form in thin, flat layers |
Precipitation | Any form of water that falls from the clouds and reaches the Earth's Surface |
Rain Gauge | An instrument used to measure precipitation |
Radiation | The direct transfer of energy by electromagnetic waves |