Kit, Stem Investigations: Design A Biodegradable Plastic, Includes: 25 mL Glycerin, 75 mL Vinegar, 175 g Gelatin, 125 g Starch, 45 Petri dishes, 30 Pipettes, contains enough materials for 15 groups. Teacher's Manual and Student Study Guide copy masters are included
Knife Switch, Double Pole - Double Throw, Double Pole - Double Throwdurable Plastic Base Knife Switches That Stand Up During Tough Student Use. Poles & Knives Are Made Of Brass For Good Electrical Connections.
Knife Switch, Double Pole - Single Throw, Double Pole - Single Throwdurable Plastic Base Knife Switches That Stand Up During Tough Student Use. Poles & Knives Are Made Of Brass For Good Electrical Connections.
Knife Switch, Single Pole - Double Throw, Single Pole - Double Throwdurable Plastic Base Knife Switches That Stand Up During Tough Student Use. Poles & Knives Are Made Of Brass For Good Electrical Connections.
Knife Switch, Single Pole - Single Throw, Durable Plastic Base Knife Switches That Stand Up During Tough Student Use. Poles & Knives Are Made Of Brass For Good Electrical Connections.