Science: Insulation

insulation

Insulation
insulation

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