Natural Disasters 1

Dr. Forrester introduces natural disasters, focusing on earthquakes, tornadoes, and hurricanes. Earthquakes occur due to tectonic plate movements, recorded by seismographs. Safety measures include dropping and covering. Tornadoes, formed in thunderstorms, have high wind speeds causing destruction. Hurricanes, originating over water, weaken on land but cause flooding. The Saffir Simpson Scale measures hurricane intensity. Advances in forecasting reduce casualties, but awareness of potential losses is crucial.

What is a natural disaster?

• A fictional event in stories

• An event caused by human activities

• An event that occurs in nature causing damage

• A man-made event causing destruction

What instrument is used to record earthquake waves?

• Seismograph

• Anemometer

• Barometer

• Thermometer

What should you do during an earthquake?

• Ignore it and continue your activities

• Run outside immediately

• Drop, cover your face, and hold on

• Stand under a tree

How fast can tornadoes move?

• 10 to 20 miles an hour

• 5 to 10 miles an hour

• 50 to 60 miles an hour

• 70 to 80 miles an hour

What is a tornado?

• A water-based storm

• A vertical tunnel of air rotating from sky to ground

• A type of earthquake

• A horizontal tunnel of air

What scale is used to measure hurricanes in the United States?

• Richter Scale

• Beaufort Scale

• Fujita Scale

• Saffir-Simpson Scale

What causes the most damage during a hurricane?

• High winds

• Heavy rains

• Flooding due to storm surge

• Lightning strikes