What in the atmosphere causes temperatures to change, winds to blow and rain to fall?
the movement of heat
nearly all energy comes from ….
the sun
What are the 3 forms energy can come in?
energy travels as what 2 things?
what are the colors we see?
visible light
what color has the longest wavelength?
red
what color has the shortest wavelength?
violet
wavelengths that are longer than red light, not visible, but felt as heat
infrared radiation
wavelengths that are shorter than blue light, not visible, causes sunburns, skin cancer and eye damage
ultraviolet radiation
radio, radar x rays and gamma rays are what…
forms of electromagnetic radiation
when sunlight travels from the sun, how much is absorbed by the earth’s surface, heating the land and water?
50%
when sunlight travels from the sun, how much is reflected by the clouds, dust, gases?
25%
when sunlight travels from the sun, how much is absorbed by gases and particles?
20%
When sunlight travels from the sun, how much is reflected back into the atmosphere?
5%
when dust and particles reflect light in all directions and gas molecules scatter short wavelengths causing the sky to look blue, that is called..
scattering
the natural process of gases in the air forming a blanket to keep the earth warm
greenhouse effect
amount of energy of motion of each particle of a substance
temperature
total energy of motion
thermal energy
what is used to measure temperature
thermometer
what scale is used by people in US
Fahrenheit
in fahrenheit, water freezes at…
32 degrees and boils at 212 degrees
scientists and everyone else use what scale
celsius
in celsius, water freezes at…
0 degrees an boils at 100 degrees
Absolute zero is where all life ends and is known as…
Kelvin