Hooke's Law Spring Material_Neoprene Double-side PVC dots on these

Double-side PVC dots on these knitted lab gloves add grip on palm and back for handling glassware and specimens requiring dexterity

sized for elementary lessons on area

the drilled aluminum ball gives a lightweight contrast to steel and brass balls of the same size in pendulum period and momentum-transfer demonstrations

this single large lump of genuine American coal ships in a cotton drawstring bag with a linked science-experiment activity

Wall-scale 8x4-foot periodic table chart on corrugated plastic board

Hooke's Law Spring Material_Neoprene Double-side PVC dots on theseThree spring replacement set for the Hooke's law apparatus at 1. 25 inch loop to loop length and 0. 38 inch diameter, providing fresh springs as originals lose accuracy from repeated stretching.