Science: Insulation

insulation

Insulation
insulation

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