Science: Insulation

insulation

Insulation
insulation

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