US$ 30.00
with a single-point central support stabilizing the rail
Glass equilibrium tubes with plastic base demonstrate pressure equilibrium
Simultaneous AC and DC output on this low-voltage power supply
this microphone amplifier connects a microphone input to both an integrated speaker and an oscilloscope-driving amplified signal for waveform study
midline structures
6-Piece Density Cubes Set with Hooks Subcategory_Scales and Balances with a single-point central supportSix metal 20mm density cube set with hooks brass, lead, zinc, copper, aluminum, and iron for water displacement and direct measurement comparisons of material density.
US$ 30.00
US$ 30.00
US$ 65.00
US$ 30.00
US$ 124.69
US$ 10.20