Science: Insulation

insulation

Insulation
insulation

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