Science: Insulation

insulation

Insulation
insulation

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