Science: Insulation

insulation

Insulation
insulation

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