Sling Psychrometer, to measure relative humidity, Includes two plastic-backed Celsius thermometers, one for dry bulb measurements and the other for wet bulb measurements, Includes an activity guide with relative humidity calculation table, Requires assembly,pack of 15
HookS Law Spring Set, Set Of Five Different Springs Constants, The Set Has Five Different Springs Constants For In Depth Investigation With Above HookS Law Apparatuses.
Insta-TEST* pH Wide Range Test Strips, Applications: Drinking Water, Industrial Water Boiling and Cooling, Laundry and Sanitation, Water and Wastewater. 50 strips/vial.
KidWind Chipboard Sheet, stiff, easy to cut, lightweight, low cost, and recyclable material used to make simple wind turbine blades, Length: 12 in, Width: 3 in, Thickness: 1.5 mm
Simple Atwood Machine, include Apparatus and 2 pulleys connected by a rod, 1.75inch plastic pulleys connected to a 3inch rod, Overall length is 8.25inch, Two pulleys are connected by a metal rod.
Ladybug Life Cycle Stages, Children can see how Ladybugs change as they grow with Insect Lore’s Ladybug Life Cycle Stages. These oversized, anatomically correct figures have been accurately painted and sculpted to show the four stages of ladybug development: eggs, larva
Sling Psychrometer, to measure relative humidity, Includes two plastic-backed Celsius thermometers, one for dry bulb measurements and the other for wet bulb measurements, Includes an activity guide with relative humidity calculation table, Requires assembly
Safety-engineered needles with attached pivoting shield to protect user. Patented safety shield allows for one-handed activation to cover the needle immediately upon withdrawal from vein. 21 gauge. Green hub. Length: 3.175cm.
Insta-Test 5-Way Natural way Test Strips, provide fast results for Nitrate, Nitrite, pH, Alkalinity and Total Hardness. Applications: Industrial Water Boiling and Cooling, Laundry and Sanitation, Water and Wastewater, Food and Beverage, Drinking Water
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