Science: Insulation

insulation

Insulation
insulation

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