1. Chapter 2
The Living Planet

2. Nate Bargatze “Science”

5. Continental Drift (AKA Pangaea)
Earth was once a supercontinent that divided and slowly drifted apart over millions of years
A GIANT PUZZLE

6. Section 2: Water/Landforms
Water covers 71% of the planet
Only 1% of the water is actually usable by humans
4 Major Oceans:
Pacific
Atlantic
Indian
Arctic

7. Ocean Motion Currents: like rivers flowing through the ocean
Waves: swells/ ridges produced by wind
Tides: regular rises and falls of ocean created by gravitation pull of the moon and sun

9. “the place where the water comes from”
Lakes hold more than 95% of all fresh water supply on earth.
Drainage basin: area of land that contributes water to a stream or river-
“the place where the water comes from”
Lake Baikal in Russia: Freshwater
Great Salt Lake

10. Landforms
Definition: any natural formation of rock or dirt

11. SECTION 3: Internal forces
Plate Tectonics: giant moving pieces of the earth’s lithosphere(crust)
Plates move= reshaping the earth

12. 4 ways of movement:

13. 3 types of boundaries

14. Examples of 3 boundaries
Divergent: Saudi Arabia and Eygpt spreading making Red Sea even wider Convergent: Himalayas are growing in India Transform: San Andreas Fault

15. Fault: a fracture in the earth’s crust
Fault Line: where two plates move past each other

16. Earthquakes
Earthquake: violent movement of the earth caused by moving plate tectonics
Seismograph: device that measures the size of the waves created by an earthquake
Epicenter: point on the earth’s surface directly above the focus point
Richter Scale: measures the strength of an earthquake (7.0, 9.9)
Tsunami: a giant wave in the ocean caused by an earthquake

17. Haiti Earthquake: January 12, 2010, 7.0 , 316,000 killed

18. Nepal Earthquake: April 25, 2015, 7. 9-8
Nepal Earthquake: April 25, 2015, , 9,000 killed (23,000 injured)

19. Laupahoehoe Harbor, Hawaii
Tsunami hit April 1, 1946
159 people died (21 schoolchildren and 3 teachers)
200 ft of ocean floor exposed

21. Volcano
Volcano: a mountain or hill that allows lava, rocks and gas to escape from earth.
Lava: magma that has reached the earth’s surface
Ring of Fire: a zone around the rim of the Pacific Ocean where a majority of active volcanoes are found (Pg 37)

23. Mona Loa
-World’s largest active volcano

24. Kilauea Volcano, Hawaii
- One of the world’s most active volcanoes

25. External Forces (Outside)
Weathering: rocks breaks apart
Done by: water, plants, animals
Erosion: the broken rocks are moved around
Done by: rain, rivers, glaciers, wind