1.Topic String-Natural Disasters
consequence of a natural hazard which affects human activities.
Broad Topic-Earthquakes
is the result of a sudden release of energy in the Earth's Crust that creates seismic Waves.
Starting Topic-Hurricanes
Hurricanes are cyclones that develop over the warm tropical oceans and have sustained winds in excess of 64 knots (74 miles/hour).
Narrow Topic-Tornadoes
Tornadoes are rotating columns of air which is in contact with both the surface of the earth and a cumulonimbus cloud.
Narrower Topic-Tsunamis
Tsunamis are a series of waves created when a body of water is rapidly displaced.
2. Questions you can ask about your topic
A. How does Natural Disasters affect people in the world?
B. Why are there so many different Natural Disasters?
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Let's think about this string:
ReplyDeleteNatural disasters is your broader topic.
The remainder are subsets of natural disasters, but they are not nested into smaller and smaller topics. Earthquakes, tsunamis, etc. are all different forms of natural disaster, but they are equal, so youo have a branching situation, not a broader to narrower situation.
To have a nesting string, you would have to take one of these, like tornadoes, and get narrower within that, for example:
natural disasters
tornados
National Weather Service tornado rating system
Tornado measuring scales
Fujita and enhanced fujita scale
Do you see the logic here? I hope so.
You have a couple of good questions you can use to search the catalog and databases when you get to them.