Science: Insulation

insulation

Insulation
insulation

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