Download Wind Vocab. and Notes Feb. 14-17

Science--Chapter 6- lesson 2- Wind -Test---Friday Feb. 17, 2017
Vocabulary Words
• global wind- a wind that blows steadily over long distances in a
predictable direction.
• sea breeze-wind that blows from the sea toward the land.
• land breeze- wind that blows from the land to the sea.
• anemometer- a device that is used to measure wind speed.
Notes
1. Air is made up of tiny particles.
2. When air is heated, the gas particles speed up and spread out
into a larger space. The air pressure decreases.
3. When air is cooled, the gas particles slow down and are closer
together. The air pressure increases.
4. Wind is the movement of the particles that make up air.
5. Air moves from an area of high pressure to an area of low
pressure.
6. Variables that can affect wind patterns are Earth’s rotation,
temperature, and location to bodies of water.
7. Latitude is a measure of how far north or south a place is from
the equator.
8. Trade winds are winds that blow between about 30°N latitude
and about 30°S latitude.
9. In the northern hemisphere, winds curve to the right, or
clockwise.
10.In the southern hemisphere, winds curve to the left, or
counterclockwise.
11. The Coriolis Effect describes the change in the direction of
something on or above Earth’s surface due to Earth’s rotation.
This effect causes winds to curve.
12. Cold air contains more particles than warm air. Cold air is
more dense than warm air. Cold air sinks, and warm air rises.
13. The Coriolis Effect can change global winds by changing the
direction of winds depending on the hemisphere.
14. About ¾ of Earth’s surface is covered with water, and about
¼ is land.
15. The temperature of land increases faster than the
temperature of the water.
16. Valley breeze is cool air moving up out of the valleys to
replace the rising warm air.
17. Mountain breeze is when warm air rises over the valley, cool
air from the mountains flows down into the valley.
18. Warm air has lower air pressure than cool air.
19. Tools used to measure wind direction are: weather vane and
windsock.
20. Sea breezes form because land heats faster than water.
21. Local winds blow because of temperature and air pressure
differences.
22. Wind speed is calculated by the number of rotations of an
anemometer during a time period.
23. Temperatures over land changes more than temperatures
over water because the land heats up more rapidly during the
day and cools more rapidly at night.