1. CATASTROPHIC EVENTS ON EARTH
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April 8, 2019

2. Starter
1. What do you think happened in these 2 pictures and how does it impact the
ecosystems? A B

3. Practice: Catastrophic events are sudden, usually naturally occurring situations where change and destruction occur. Some catastrophic events can be man-made such as fires caused by humans. All catastrophic events can be grouped into three categories based on how they are caused.

4. 3 Categories of Catastrophic Events Weather events—flood, hurricanes, tornadoes, drought, and wildfires (caused by lightning) Geological events—volcanoes, earthquakes, and tsunamis Human error—wildfires are often caused by careless campers, discarded cigarettes, and arsonists

5. All catastrophic events are the Earth’s way of maintaining equilibrium during change. Since the Earth’s dynamics are uncontrollable, accurate predictions are not possible. Studying and researching catastrophic events has an impact on society and the environment.

6. CATASTROPHIC EVENT
Sudden, natural (or man made) situations where change and destruction occur.
All
catastrophic
events are
Earth’s way of
maintaining
equilibrium
during change!

7. DROUGHT
An unusually long period of dry weather that lasts long enough to cause water supply shortages.

8. EARTHQUAKE
The vibration of the Earth’s surface that occurs after a release of energy in the crust.

9. FLOOD
An overflowing of water onto land that is normally dry.

10. HURRICANE
A tropical storm that picks up constant speed to 74 mph or more.

11. TORNADO
A violently rotating column of air extending from a thunderstorm to the ground.

12. TSUNAMIS produced by earthquakes, volcanic eruptions, meteorite
Ocean waves
produced by
earthquakes,
volcanic
eruptions,
meteorite
impact, or
underwater
landslides.

13. VOLCANO
A vent in the Earth which allows molten rock (magma) to escape to the surface.

14. Fierce fires that spread rapidly in areas of wilderness.
WILDFIRES
Fierce fires that spread rapidly in areas of wilderness.

15. EQUILIBRIUM
A state or situation in which opposing forces balance each other out and stability is attained.

16. A disaster caused by natural forces rather than by human action.
NATURAL DISASTER
A disaster caused by natural forces rather than by human action.

17. Application
Brain Pop – Natural Disaster & quiz

18. Connection/Exit
Matching Foldable