Science: Insulation

insulation

Insulation
insulation

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