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Documents What is Air? It’s a GAS! Mostly Nitrogen= 78% Oxygen = 21% Argon = about 1% Trace amounts of other...

Slide 1What is Air? It’s a GAS! Mostly Nitrogen= 78% Oxygen = 21% Argon = about 1% Trace amounts of other gases Composition of Earth’s Atmosphere Slide 2 Volume Define…

Technology ChapD1.2

1. Air and Weather 2. Air and theSun weather begins w/ the sun provides energy for making weather amount of energy reaching Earth different in different places more at equator…

Documents Weather Fronts Ms. Bireley’s 8 th Grade Science. What is a front? Boundary separating two masses.....

Slide 1 Weather Fronts Ms. Bireley’s 8 th Grade Science Slide 2 What is a front? Boundary separating two masses of air of different densities and is the principal cause…