Question |
Answer |
What causes Wind? |
Wind is caused by differences in air pressure. Air moves form an area of high pressure to an area of low pressure. |
High Pressure is what type of air? warm or cooler. |
High Pressure is cooler air. |
Low Pressure is what type of air? warm or cooler |
Low Pressure is warm air. |
What causes wind? |
The air from an area of high pressure (cooler air) flows under an area of low pressure(warm air) and causes the warm air to rise. |
What is used to measure wind speed? Hint: cups on a stick. |
Wind speed is measured by an "anomometer". It has 3 or 4 cups mounted on spokes that spin an axle. |
What are Local Winds? Hint local pizza. Made in town |
Local Winds are winds made locally by heating of the earths surface. They blow short distances. |
What are Global Winds? Hint the earth/globe. |
Global winds are winds made by warming of the earth overall. They blow form long distances. Doldrums, Horse Latitudes, Trade Winds. |
What are Doldrums |
They are near the equator with little or no winds. |
Horse Latitudes |
Latitudes 30 degrees north and 30 degrees south. The earth heats up at the equator. The rises quickly and is divided. Some flows north, some flows south. Looks like a horse shoe. |
Trade Winds |
Used by early sailors who traded from Africa and Asia. Cold air from the horse sinks and it causes high pressure that cause big surface winds to blow. |
Prevailing Winds |
Winds that blow from west to east. |
Jet Streams |
High Speed winds 10km above the earth's surface. Hundreds of KM wide. Blow very fast. 200 to 400 km per hour. |
What are the four layers of the Atmosphere? |
1: Trosposphere(0 to 12 km above it). 2: Stratosphere (from 12 km to 50 km above earth) cold -60 C, 3: Merosphere (50 to 80 km) very cold -90 C 4: Thermosphere has two parts. (80 km to 550 km) 1,800 C |
What is the bottom layer near earth called? Hint Trops |
1: Trosposphere(from earth to 12 km above it). |
What is the next layer after the Troposphere? Hint Strat |
2: Stratosphere (from 12 km to 50 km above earth) cold -60 C, contains ozone layer/layer of haze that traps heat. |
What is the next layer after the Stratosphere? Hint Meros |
3: Merosphere (50 to 80 km) very cold -90 C. Meteoroids burn up in this layer. |
What is the top layer called? Hint Thermo |
4: Thermosphere 80 km to 550 km) 1,800 C (very warm) It is the last layer before space. |