Lesson 4 Brain Check pg 213

A. Some of them have two panes of glass.

B. It can be blown inside walls.

C. It slows the transfer of heat.

D. It's the opposite of C.

E. The silver layer of an insulated bottle does this to radiated heat.

F. Because of natural insulation, it's often the coolest part of a house.

G. It's an excellent conductor.

H. It does not conduct as well as metals do.

I. It makes conduction and convection impossible.