Science: Insulation

insulation

Insulation
insulation

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