The lamp board is a device for showing the effect of different kinds of series, parallel, and series-parallel circuit hook-ups via the brightness of light bulbs acting as resistances. The board’s convenient strap-connectors allow a combination of two to five lights in series-parallel mixes. By using the lamp board alone, the user can optically see how electrical energy is being distributed due to a particular hookup. By using electrical meters, it is possible to make quantitative measurements of the distribution of energy, but such measurements are only recommended for advanced students. Included with this useful kit are seven light bulbs (five for the board, two extras), and very comprehensive instructions for using the board effectively either in experiments or in a classroom environment. The lamp board is an excellent resource for teachers and students.
These ear plugs are made of self adjusting foam that provides a comfortable, low pressure fit and excellent sound filtration.
Durable, anti-fog safety glasses that fit comfortably on any head size.
Highly durable lab apron made of rubberized cloth is impermeable and easy to clean, perfect for all manner of lab or classroom experiments
High-protection, fluid-resistant and anti-static disposable lab coat in size Extra Large.
High-protection, fluid-resistant and anti-static disposable lab coat in size Large.
This set includes three (3) N95 FDA registered and NIOSH approved and respirators.
Defy gravity with this cool balancing eagle!
Experience this sphere powered by the sun!
Use this awesome prism to teach about optics and light in the classroom setting!
This project book and sample kit introduces you to shape-memory alloy technology!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
This is a classic demonstration toy of the powers of magnetic fields!
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