Transcript Chapter 12 Notes

Chapter 12 Notes
The sky looks blue
because of scattering.
• The direct transfer of electrometric waves
is called convection.
• A form of precipitation in which rain
freezes a it falls through the air is sleet.
• Hailstones form only in the type of clouds
called cumulonimbus.
• On the Fahrenheit scale, the freezing point
of water is 32.
• Clouds form when air is cooled to the dew
point.
• The upward movement of warm air and the
downward movement of cool air is called a
convection current.
• You compare the readings of a wet-bulb
and dry-bulb thermometers to measure
relative humidity.
• Wind direction is measured with a wind
vane.
• In the Northern Hemisphere, global winds
that blow from the southwest to the
northeast are called prevailing westerlies.
• Ultraviolet radiation can cause skin cancer.
• The most common kind of precipitation is
rain.
• Temperature is the average amount of
energy of motion of each molecule of a
substance.
• All winds are caused by differences in air
pressure.
• The three main types of clouds are
cumulus, cirrus, and stratus.
• The part of sunlight with the longest
wavelength is infrared radiation.
• Cirrus clouds are made mostly of ice
crystals.
• A wind blowing toward the north is called a
south wind.
• Monsoons are caused by unequal heating
of sea and land.