Natural Selection Image Map

Activity 1

This activity is designed to allow students to conduct an experiment to help understand whether global warming would raise the sea level by melting ice.
A glass of ice water
A paper towel

Fill a tall glass with ice. Set the glass on a dry paper towel. Now fill the glass completely to the top without spilling any water and without letting any water overflow.  The paper towel should be completely dry.

Make a prediction on what will happen when the ice melts. Will the glass overflow? This is a miniature test of the question of whether melting icebergs in the North Pole will raise the level of sea water along beaches and costal cities. 

Report your findings on the response sheet by clicking here.


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