final exam 4th quater

• atmosphere - its made up of natural gases and has 5 layers
• troposhere - the first layer of the atmosphere ( 14 - 18) km above earths surface
• jet stream - fast moving river
• stratosphere - 50 km above earth
• stratosphere - very little water vapor
• mesosphere - 90 km above earth

  temperature decreases with the height
• mesosphere - coldest layer
• thermosphere - electrically charged layer
• ionosphere - located on the thermosphere
• exosphere - begins at the top most part of te thermosphereand continues to space
• atmospheric pressure - the pressure exerts on the surface
• air mass - a large volume of air that ha s the same temperature and moisture
• low pressure area - warm air rises
• high pressure area - cool air sinks in
• wind - its where air from low pressure area to a high pressure area
• sea breeze - the wind that blows from the sea to the land.
• land breeze - wind that blows from land to the sea
• precipitation - the movement of water from the atnosphere to earths usrface
• rain - when water vapor becomes too heavy and falls down to earth
• sun - the center of the solar system
• corona - outer layer of the suns atmosphere
• sun spots - blacks spots found in te sun
• photosphere - glowing gases layer
• chromosphere - above the photosphere about 2000 km layer
• solar flares - flashes brought by bright light
• core - the sun's center temperature
• earth - 3rd planet from the solar system
• 365.25 days - complete revolution of the earth to the sun
• 23.5 degrees - the earth is titled at how many degrees
• niel armstrong - the first human to ever step foot of the moon ( 1969)
• edwin aldrin - also the first man to step to the moon
• 23 hours and 56 minutes - full rotation of the earth on its axis
• rotation - creates day and night
• elliptical orbit - the moon revolves around the earth
• penigee - the point of the moons orbit closest to the earth
• apogee - farthest from the earth
• eclips - when new moon passes between the sun and moon
• umbra - small shadow
• penumbra - large shadow