Science: Insulation

insulation

Insulation
insulation

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