DugglebyB's General Knowledge Quiz #2 by DugglebyB

Question 7

Emulsions and aerosols are part of what larger class of substances? In the Tyndall effect, these substances will often appear blue if you shine light through them since they best scatter light with low wavelengths.

COLLOIDS (or SUSPENSIONS) (edited at 10:09 pm, March 16, 2017 (PDT))

Original Answer: COLLOIDS