Straight Borosilicate Glass Barometer Tube, 90cm x 3-4mm Bore Item Type_Spoon this lamp holder provides connection

this lamp holder provides connection terminals for fast wiring into series and parallel student-built circuits

the thinnest gauge for mounting the smallest and most delicate insect specimens in permanent displays

Illustrates that sound needs a medium to travel through a 10-inch acrylic bell jar with internal buzzer

dual digital displays monitoring voltage and current simultaneously

Straight Borosilicate Glass Barometer Tube, 90cm x 3-4mm Bore Item Type_Spoon this lamp holder provides connectionBorosilicate glass 90cm barometer tube with a 3 4mm bore, open at one end for mercury barometer construction and atmospheric pressure demonstrations.