The jet stream occurs between the troposphere and the stratosphere, so draw arrows to represent this fast moving current of air on the borderline between the two layers. The third layer of the atmosphere, the mesosphere, extends 80 km from Earth's surface. Measure, draw, and label this layer. This is the coldest layer, so draw a thermometer to represent the very cold weather. The ozone is between the stratosphere and mesosphere.
Ozone is made of three atoms of oxygen.
The fourth layer of atmosphere, the thermosphere, extends 480 km above Earth's surface. Measure, mark, and label this layer. A thin region in the thermosphere, called the ionosphere, contains charged atoms. When meteoroids enter Earth's atmosphere, they enter the thermosphere, which is extremely hot. Because of the heat and friction with molecules in the atmosphere, most meteoroids burn up.