Science: Insulation

insulation

Insulation
insulation

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