Science: Insulation

insulation

Insulation
insulation

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