Science: Insulation

insulation

Insulation
insulation

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