Science: Insulation

insulation

Insulation
insulation

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