Science: Insulation

insulation

Insulation
insulation

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