1. Yorkville High School 2014 World Geography and Cultures
Ch. 2 The Physical World
Kilauea in Hawaii
Yorkville High School 2014
World Geography and Cultures

2. The Planet Earth

3. 2.1: Planet Earth
Objective: Describe what makes the Earth suitable for plant and animal life.

4. Our Solar System The planets = our neighbors in space At least 8 exist
Earth
3rd from the sun
93 million miles from the sun

5. Our Solar System Asteroids: Comets Meteoroids
Small irregularly shaped objects
Comets
Made of icy dust particles and frozen gasses with tails
Meteoroids
Pieces of space debris
Chunks of rock and iron

6. Earth Earth - Not a perfect sphere Hydrosphere – 70% H20
Lithosphere – 30% land
Atmosphere – the air we breathe
78% nitrogen, 21% Oxygen
Biosphere – Animals, plants, people

8. Break for Sphere Gallery Walk

9. Earth: Landforms 7 Continents Continental Shelf
North America, South America, Africa, Antarctica, Europe, Asia, Australia.
Continental Shelf
Part of the continent that extends under water

11. Earth: Heights and Depths
Highest point:
Mt. Everest – South Asia at 29,035 ft. above sea level
Lowest point:
Shore of the dead sea – SW Asia at 1,349 ft. below sea level
Deepest Depression (under water):
Mariana Trench (under sea) – SW Guam at 35,827 ft. deep

15. 2.2 Forces of Change
Objective: Explain how internal and external forces have shaped Earth’s surface.

16. Plate Movement Pangaea Modern Day Pangaea
Research suggests there Earth began with one continent.
Millions of years: broke into seven
Catastrophic past

17. Plate Movement Earth’s plates continue to move causing Changes
Push up mountains
Natural disasters
Create volcanoes and earthquakes (Plate Tectonics)

18. Internal Forces of Change
Plates
Collide and spread
Fold and fault

19. Internal Forces of Change
Earthquakes
Ring of Fire: Pacific Ocean

20. 1906 San Fran.

21. 2010 Haiti

22. Illinois?

23. Internal Forces of Change
Volcanoes
Pacific Rim of Fire

24.
Eruption of Mt. Vesuvius 1944

25. External Forces of Change
Weathering
Break down of rocks into smaller pieces
Wind Erosion
Glacial Erosion
Water Erosion

27. Forces of Change Warning Poster!
“Plates”
Dru
Michael W
Thomas
Matt
Folds and Faults
Julian
NoE
Ben L
Earthquakes
Georgia
Hannah B
Jess
Emme
Volcanic Eruptions
Student
Dakota
Kyle
Weathering
Megan R
Meghan D
Briannah
Wind Erosion
Donovan
Adrian
Austin
Bryce
Glacier Erosion
Hannah J
Emily
Dayne
Water Erosion
Daisy
Ellyse
Ben S

28. Essential Question
How have internal and external forces changed the Earth? How will they continue to change it?
Take two minutes to jot down your answer…this will be your two sentence summary.

29. 2.3: Earth’s Water
Objective: List and describe the physical process that keeps Earth’s water constant

30. Water Cycle 4 Stages Evaporation Condensation Precipitation
Run-off/Groundwater
(Know this order)