Heat Pack - 4 in. x 4 in.

SKU/Product Number
SB47058
In Stock
$6.50

Grades K-12.

Contains a super saturated solution of water and sodium acetate. Snapping the metal disc creates a chain reaction, causing the solution to crystallize. The crystallization process gives off heat. Packs can be recharged back to the liquid state by immersing in boiling water for 10-15 minutes and allow it to slowly cool. Includes teacher’s guide. 4 in. x 4 in.

Heat Pack - 4 in. x 4 in.
More Information
Brand American Scientific
Item Weight 0.35 lbs
Length 6.60
Width 4.60
Height 1.00
Age Infant-All Ages
Grade Preschool-All Levels
Prop 65

School Type Elementary School, High School, Middle School
Subject Areas Physical Science
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