Earth’s Atmosphere

Composition and Natural Cycles

Atmosphere makes life possible:

Living things use gasesKeeps earth warm. i.e Global WarmingProtects life

Characteristics of the Atmosphere

Becomes thinner as altitude increasesDensity decreases as altitude increasesThe weight of the atmosphere is closer to Earths surface

Materials in the AirMost materials are gasesDust, saltwater, and vapors are present in the airNitrogen 78%

Oxygen 21% other gases 1%

Construct a Pie Graph

Shade in the three gases found in our atmosphere with your colored pencils. Each gas should be represented with different colors

Gases in the atmosphere

NITROGENOXYGENOTHER GASES

ClassworkUse pg 12A-13AWrite 2-3 facts about each cycle to reference each picture.No additional time will be given to complete the assignment, so you must work hard!!

ReflectionWrite a summary about what you have learned about todays lesson. Please complete on the bottom of SIN pg 3. It will be included on the notebook check.