Paper punch-out dots soaked in isopropyl alcohol will move about randomly when placed flat on the surface of water, superficially resembling swimming movements of single-celled protists. This exercise is a hands-on and dynamic activity to generate discussion on the generally accepted characteristics of living things.
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1 March 2011
A Simple, Inexpensive, Dynamic, & Hands-On Exercise for Prompting Discussion of the Characteristics of Living Things
James E. Mickle,
Patricia M. Aune
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biology lab exercise
Characteristics of living things
dancing dots
Euglena
Paramecium
surface tension