Grade 8 Earth Science. Chapters 14 & 16: Atmosphere & Climate. Composition of Earth’s Atmosphere. Layers of Earth’s Atmosphere. Info. Relating to the Atmosphere. Troposphere- Ionosphere- Where does weather occur? Why does the frequency of radio stations break up?. Ozone Layer.
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Atmosphere & Climate
Where does weather occur?
Why does the frequency of radio stations break up?
deflects all free-moving objects (such as air and water) to the right north of the equator and left to the south
weather & climate?
Some climatic changes last longer than a season…
El Nino is a climatic event that starts in the tropical Pacific Ocean and sets off changes in the atmosphere (unusually warm ocean temperatures)
La Nina is El Nino’s counterpart which causes unusually cold ocean temperatures
How do oceans affect you?
How do you affect oceans?
distribute equatorial heat to other areas of earth
______ and ______ in sea level
the difference between the level of the ocean at ______ _______ and ______ _______
Tides are affected by the gravitational pull of the _______ and _____ on the earth’s waters.
The moon is closer to earth, and therefore, exerts a _________ gravitational pull.
Ocean Basin Features
Plate Boundary Structures
Salt has always been collected from the ocean water. Now, we also collect oil, gas & minerals from the sea.
- photosynthetic organisms capture the sun’s energy and make food using light energy, carbon dioxide, and water through _______________
- chemosynthetic organisms do not rely on sunlight; instead, they rely on ____________
Chapter 22: Sun-Earth-Moon System
(NOT “circle” or “eclipse”)
AKA: “shooting star”
Asteroids – are pieces of rock that orbit the sun between Mars and Jupiter (The Asteroid Belt)… What are they doing there?
5 constellations that circle Polaris and are visible all year long in the