Science: Insulation

insulation

Insulation
insulation

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