US$ 117.00
condensing lens
supplying clean low-voltage current to introductory electronics
Glass measure spare
Twin-bore brass block calorimeter at 1kg adjusted to +2% mass accuracy
this adjustable spectrometer pairs collimator
Set of 50 Rocks Cardboard Box Science at Home_Chemical Science condensing lensSet of 50 Collections. Each specimen labelled with name. Set of 50 Collections of Igneous, Sedimentary, Metamorphic rocks containing different rock specimens supplied in carboard box. Each specimen labelled with name.
US$ 117.00
US$ 105.00
US$ 9135.00
US$ 205.00
US$ 1975.00
US$ 295.00
US$ 17.99
US$ 55.99