Science: Insulation

insulation

Insulation
insulation

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