Science: Insulation

insulation

Insulation
insulation

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