63-Piece Worcester Electrical Circuit Board Kit Science Classroom deflecting visibly in the presence

deflecting visibly in the presence of a charged object to reveal both charge presence and polarity

and steel cubes machined to the same 1

the drilled aluminum ball gives a lightweight contrast to steel and brass balls of the same size in pendulum period and momentum-transfer demonstrations

Simple-form Boyle's Law apparatus pairing a graduated plastic syringe on a wooden block with a weighted piston

vertical graduated tube

63-Piece Worcester Electrical Circuit Board Kit Science Classroom deflecting visibly in the presenceHard plastic 13x13 inch Worcester circuit board with 12 metal poles and 4 banana terminals, the foundation for student built series parallel circuits and electromagnetic induction demonstrations.