6th Grade Ch 1 Sec 3 Layers Of The Atmosphere

Ch. 1 Sec. 3 Layers of the Atmosphere

Layers of the atmosphere are classified by changes in temp.

troposphere
lowest layer
from 0  12 km
we live in it

Weather occurs in the troposphere.

stratosphere
12  50 km
absorbs UV radiation
ozone layer
weather balloons

mesosphere
50  80 km
meteors burn up
coldest part of atmosphere

Most me teoroids burn up in the me sosphere.

thermosphere
outermost layer
80 km  to outer space
no definite outer limit
divided into 2 layers:

ionosphere
lower layer
aurora borealis

AURORA BOREALIS

Communication satellites orbit Earth in the exosphere.

2. exosphere = outer layer satellite

Name that layer

AURORA BOREALIS thermosphere (ionosphere)

stratosphere
absorbs UV radiation

troposphere
lowest layer
we live in it

mesosphere
meteors burn up

stratosphere
ozone layer

mesosphere
coldest part of atmosphere

thermosphere (exosphere) = outer layer satellite

Weather occurs in the troposphere.

Communication satellites orbit Earth in the exosphere (thermosphere).

by Karen Holewinski on Mar 26, 2010

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