Science: Insulation

insulation

Insulation
insulation

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