Gears, sets offer 40-, 30- and 20-tooth gears with 3/16in bore to accommodate the most popular dowel size, and a 12-tooth gear with a push-fit to 2 mm motor shafts. Three inserts are provided on each sprue, allowing the 3/16in bore to reduce to 3 mm
Geiger Counter, Versatile, easy to use and compact precision instrument for measuring alpha-, beta- and gamma-radiation. Filter selection switch at the front of the Geiger-Muller counter tube for filtering out types of radiation
Geometry Resource Kit, includes: double sided geoboards(12) with rubberbands, one overhead geoboard, shape tracer set, pattern blocks, over head pattern blocks, tangrams (16 puzzles), overhead tangrams, a Tangramables book, a Let's Pattern Block It book and geoboard dot papers
Green Chemistry Kit, Production of Biodiesel, Kit Includes: 2 X 500mL Vegetable oil, 5 X 25mL Methyl alcohol, 10g Potassium hydroxide, 2 Microburners, Kit contains enough materials for 5 groups of students, with Teachers Manual and Student Study Guide
Hall Effect Apparatus, Features: n-type GaAs Hall sensor chip, Two-axis mechanical traverse for field plotting, 3-1/2 digit current and voltage meters, Metal storage case for the Hall Effect board, Reversing switch for exploring the elimination of systematic error
Hand Held Centripetal Force Kit, Kit Includes: Plastic Handle, Rubber Stopper, String, 20 Washers, 2 Paper Clips, Provides The Necessary Tools To Discover Properties Of Rotational Dynamics. A Rubber Stopper Swings Around On The End Of A String Counter Balanced
Health and Harmony Excellent Kit, Includes: Conductivity of Water Tester, Wave/Spine/Arm/Brain/Head Model, Created for middle school ages, Well-rounded curriculum that incorporates stem content, For use across Physics, Chemistry, Biology and Mathematics
Heat Transfer Kit, Class, Contains 15 Sets Each Of: 2 Styrofoam Calorimeters With Lids, Aluminum Heat Transfer Bar, Low Range Thermometer (-40 - 50 Deg C), High Range Thermometer (-30 - 110 Deg C), With Two Thermometers Specifically Designed For Hot And Cold Temperatures.
Heat-it Kit, Group, lets you grow and engineer bacteria with a DNA plasmid that can be controlled with heat. Decide when you want the DNA program to turn on by choosing the temperature you grow the bacteria at, to create tree ring pat
Hookes Law, set of 5 springs with different spring constants, forces required for 1cm extension are 0.25N, 0.5N, 1N, 1.5N, and 2.5N respectively, Pre-stress has been removed for accurate results, With a hook to support a weight hanger and a red arrow to indicate position
Horizon Energy Box, Combines All Horizon Kits And Modules Into One Large Set For Classroom Use 100+ Experiments And Hours Of Activities With This One Set, Comes In A Plastic Storage Box For Long Term Storage, Cd With Curriculum Manuals, Assembly Instructions
Horizon Energy Monitor, Voltage, Current, Power, Joules, Resistance And Even Rpm Speed Available At The Touch Of A Button-Displayed Either On The Lcd Screen Of The Monitor Itself Or As Graphical Data On Your Pc, Monitor Help Bring Lab And Field Experiments Back