Science: Insulation

insulation

Insulation
insulation

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