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G4 Planet Earth: Hazards and solutions

How the Earth is shaped

Humans Impact the Earth

VIDEO Humans are causing changes to the Earth and it's processes. (NGSS)
Fun ways to prevent disasters from UNICEF (PDF of games, puzzles)

Humans and Hazards

How are humans effected by natural hazards?


Why do humans map the Earth?

Effects of super volcanoes on humans

Natural Hazards

First hand accounts from survivors of natural disasters

First hand accounts of surviving a natural hazard
Hurricane, Tornado, Wildfire

Hazards and Solutions

How do humans reduce the effects of natural hazards?

VIDEO DDR Disaster Risk Reduction

Measuring Tornadoes

Scales we use to measure hazards

Scales Used to Measure Earthquakes
  • The Richter Scale. The Richter scale was invented in the 1930s by Dr. Charles Richter, a seismologist at the California Institute of Technology. ...
  • The Mercalli Scale. The Mercalli scale measures the intensity of an earthquake by quantifying the effects of an earthquake on the Earth's surface. ...
  • Moment Magnitude Scale.

Vocabulary and Definitions for Tools we Use






avalauncher: A device used to launch explosives (an avalanche mortar) onto avalanche-prone slopes in order to trigger small avalanches so that large avalanches do not form.





DART: DART = deep-ocean assessment and reporting of tsunamis system. A collection of sensors and buoys that detect potential tsunamis and warn people in coastal areas

seismometer: A device for detecting and measuring the intensity of an earthquake. Also known as a seismograph.

tiltmeter: A device placed on a volcano that can detect changes in the size of the volcano due to increased magma volume. Used to help predict impending eruptions.

engineer: A person who applies her/his understanding of science and mathematics to creating things for the benefit of humanity and our planet.

Doppler radar: A type of weather radar that is used to detect precipitation and track the speed and direction of a storm.

buoy: A floating device.

Gathering and using data

How do humans use data to reduce the impact of natural hazards?

Earthquakes and buildings

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