a: Surface tension ~
b: high blood pressure
What:
"SURFACTANTS are the key ingredients in laundry detergents. They are substances that reduce the "surface tension" of the water. Surface tension is like high blood pressure on the surface of water. Surfactants lower the tension making it easier for the water to soak into the laundry. "
Useful?
Writer: Not Stated
LCC:
Where:
Date: Sep 9 2014 7:01 PM
# 6258 Critique Analogy