Science: Insulation

insulation

Insulation
insulation

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