Science: Insulation

insulation

Insulation
insulation

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