Build your own Birdhouse Kit, Teachers, this is a great and affordable way to get your kids Design, Building while creating something practical and at the same time beneficial for the environment, Perfect size for a chickadee or finch, Comes unpainted, Assembly required
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
Universal Clamp with Holder/boss head, Manufactured in stamped steel, head roates 360 degree, holds items 15 to 45 mm in diameter, one of the jaw is flat angled and the other is V, allows good gripping of all cylindrical shaped objects, Overall length: 15 cm
Pulley, Triple Sheave, Pulleys wheels are made of plastic and mounted securely in an aluminum housing with a hook on both the top and bottom for suspension, Size: 50mm
Metal Blocks, For Density Determinations, Set Of Twelve In Assorted Sizes, Shapes And Masses. The Set Comprises Two Each Of Brass, Iron, Aluminium, Copper, Zinc And Lead. Masses Vary From 12 - 25 G
Equilateral Prism, Material: Acrylic, Useful for experiments in Optics, Light Refraction and Wavelengths, Will create a rainbow (even in room light) by using the simple led light of a smart phone, User will need to create a small slit in a black piece of paper, Size: 3in Hx1in W
Suture Practice Pad, Premium, for practicing suturing skills, realistic texture and a variety of common cuts and lacerations, irregular wounds and Y shaped for corner stitches, Suturing tools not included, For educational use only, Size: 6.5wx 5.75lx 0.5in t
Lead-Free Density Blocks With Hooks, Ideal For Studying Density And Specific Heat Without Using Lead. A Block Of Brass, Copper, Aluminum, And Steel Are Included In The Kit Along With A Complete Instruction Manual, Density, Specific Gravity, And Specific Heat
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.