Steel Tuning Fork Pair with Wood Bases, 440Hz (One Adjustable) Subject_Botany Hand-painted 4-part human brain model

Hand-painted 4-part human brain model separates into cortical hemispheres and brain-stem regions for lobed-anatomy teaching at introductory biology levels

Zinc alloy natural gas Bunsen burner with flame stabilizer ships with a 2-foot neoprene gas hose for quick bench hookup in chemistry classrooms

suited to fieldwork in geography units and orientation activities outside the classroom

and laboratory procedures

and twelve 50g slotted weights for vector-addition work

Steel Tuning Fork Pair with Wood Bases, 440Hz (One Adjustable) Subject_Botany Hand-painted 4-part human brain modelAdjustable mass on one fork shifts its 440Hz pitch by a few hertz, producing audible beats when sounded against its fixed frequency partner on the matching wooden resonance base.