Science: Insulation

insulation

Insulation
insulation

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