Portable Digital Voltmeter, 0-20V DC Subcategory_Zoology Models Hundred-fourteen-piece organic chemistry molecular model

Hundred-fourteen-piece organic chemistry molecular model set with 50 atoms and 64 links covering single

two beaker mugs

a battery-free source of partial vacuum for bell-jar demonstrations without external power

Two-thousand-turn 0

demonstrating mechanical advantage as the angle of incline changes the effort needed to roll the cart up the slope

Portable Digital Voltmeter, 0-20V DC Subcategory_Zoology Models Hundred-fourteen-piece organic chemistry molecular modelBattery powered portable digital voltmeter measuring 0 20V DC at plus or minus 1 digit accuracy on a large LCD, sized to give student bench setups a direct numeric reading without analog parallax.