5. Imagine….. Think of yourself on the bottom of the ocean. What is surrounding you? The same is with the atmosphere – it surrounds like the ocean, yes it is heavy but we are use to it.

6. The Troposphere The troposphere is where all weather takes place it is the region of rising and falling packets of air. It also contains the winds

7. The Stratosphere and Ozone Layer Above the troposphere is the stratosphere, The thin ozone layer is in the upper stratosphere This layer (ozone) is primarily responsible for absorbing the ultraviolet radiation from the Sun. Earth.

8. The Mesosphere Above the stratosphere is the mesosphere This is where we see "falling stars," meteors that fall to the earth and burn up in the atmosphere. At certain times of the year, we can see many of these "falling stars" when the earth goes through the pieces of a broken comet.

9. The Ionosphere Also called thermosphere many atoms are ionized (have gained or lost electrons so they have a net electrical charge). The ionosphere is responsible for absorbing the most energetic photons from the Sun, and for reflecting radio waves, thereby making long-distance radio communication possible.

10. What is Temperature? The real definition of temperature is the measure of the average speed of air molecules That means the more energy something gives off the hotter it will be

11. Degrees Fahrenheit (° F) Degrees Fahrenheit (° F) In 1724 that Gabriel Fahrenheit, an instrument maker, made a thermometer with mercury. 212 boiling point 32 freezing point

12. Degrees Celsius (° C) In 1745, Carolus Linnaeus invented a scale in which 0 is freezing point 100 boiling point

13. Aneroid Barometer Inside tube is a container that doesn’t have any air in it. Increase of pressure – container bends in Decrease of pressure container bulges out This container is connected to a pointer that records the atms pressure on a graph

14. Mercury Barometer Measures atmospheric pressure Atmosphere pressure presses on mercury in the bottom which makes mercury rise up the barometer. The greater the pressure the the higher the mercury rises