Science: Insulation

insulation

Insulation
insulation

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