Science: Insulation

insulation

Insulation
insulation

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COLD
ENERGY
FIRE
HEAT
HOT
INSULATOR
STOVE
SUN
TRANSFER
B B T Q D E N W I
G H H E L Z U N T
D I E V O T S R H
E M X K C U A L Y
R R S H L N P S F
T U I A S E S A T
J A T F M Q Q R G
V O E N E R G Y Y
R R U H O T V D R
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