Bromothymol Blue Indicator Reagent, 5g Material_Bristle letting students directly observe pressure-volume

letting students directly observe pressure-volume changes under stacked weights

Higher-range 30-0-30mA center-zero galvanometer at 20mA sensitivity and plus-or-minus 2

7 ratio brightening real-image projection setups in image-formation experiments

Dark-complexion half-size torso with numbered removable organs and identification key card supports inclusive anatomy teaching in compact classroom spaces

fitted with two LEDs

Bromothymol Blue Indicator Reagent, 5g Material_Bristle letting students directly observe pressure-volumeUsed as a yellow to blue pH indicator covering the 6. 0 7. 6 transition range, this 5g bottle of bromothymol blue tracks color in acid base titrations and respiration rate biology demos.