pH Buffer Calibration Solutions Kit with pH 4/7/10 Buffers and KCl Storage Solution, 500mL Each Base Size_13 x 7" Large-format aluminum bucket-and-cylinder set for

Large-format aluminum bucket-and-cylinder set for Archimedes-principle demonstration

ten 300 by 3mm rods dimensioned to match companion copper

combining chemical resistance with the volume supply for installing multiple fluid runs at once

letting heated liquid rise and circulate through the loop for a clear convection-current demo

pH Buffer Calibration Solutions Kit with pH 4/7/10 Buffers and KCl Storage Solution, 500mL Each Base Size_13 x 7" Large-format aluminum bucket-and-cylinder set forThree point pH meter calibration kit with 500mL each of pH 4. 00, 7. 00, and 10. 00 buffers, plus 100mL of 1M KCl electrode storage solution for full calibration across the meter's range.