Science: Insulation

insulation

Insulation
insulation

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