US$ 28.00
and phase-change experiments
and heart-tube formation for embryology and developmental biology teaching
Sealed chamber with a manometer tracks gas exchange through a respiring organism
Built to reveal stress fringes in transparent solids
Reading both light and heavy liquids on a single dual-scale stem from 0
Portable Water Alkalinity Testing Kit for 40 Tests engine models and phase-change experimentsPortable alkalinity kit measures buffering capacity through titration methods, water quality analysis, and environmental chemistry field testing for 40 tests.
US$ 28.00
US$ 29.00
US$ 101.00