Science Unit 3 - Lesson 1 - The Atmosphere

A mixture of gases that surrounds Earth.

The measure of the force with which air molecules push on a surface.

The lowest layer of the atmosphere where we live, where most weather occurs.

Layer above troposphere

Area in the stratosphere layer of atmosphere at an altitude of 15-40 km above the Earth's surface.

Layer above stratosphere - coldest layer

Uppermost layer of atmosphere. Temperature can reach 3,600 degree F

Process by which gases in the atmosphere absorb and give off radiation, keeping the earth warm and able to support life.