Applied Science - Science and Math (3C)
Post Lab 

  • Comparing scientists and their discoveries.
  • Comparing inventors and their inventions.
  • discovery
  • invention
  • inventor
  • scientist

Students research the people behind inventions and science.


The distinction between a discovery and invention is not always clear.  Scientists merely document what is already functioning in nature.  The inventor creates a device or techniques or machine that has never existed before.  Many times a scientist and inventor are one in the same person.  For instance, George Washington Carver discovered that lack of nitrates in the soil were ruining the cotton crop, and that planting peanuts would restore the land.  He then invented many ways to use peanuts.

Invention and discovery seem to be a human trait.  All cultures and both sexes have contributed to humankind.  Tool making was probably the first invention in the territories of Africa and Asia.  Modern historians feel that Asia was far ahead of the Europeans in engineering, optics, acoustics and many other disciplines.  The Europeans, however, were more world-wide explorers and brought back inventions they found in Asia to their homeland.  Cultural influences, including religion and wealth of the society, also influenced scientific thought and invention.

Students should become aware that all societies contributed to what is known today.  Without information built up over the years, all societies would have to start from the beginning.  The world is always changing because of the advances of science and technology.

Our country is very diverse and this diversity can add to our strength.  Encourage students to find out the advances of their particular culture by investigating.  If children are not familiar with their ancestry, they can investigate American contributions from Native American to early and present day Americans.  


  1. There are many inventors throughout the history of the world. The library and encyclopedias are recommended to obtain information. This can be an extension of the Pre Lab that looked at specific technology. 
  2. Give students the worksheet and have them write a paragraph on their favorite scientist or inventor.  In the paragraph they should say “why” the person is their favorite.  Have them draw the person, using the cartoon as a template.

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