Set of 50 Rocks Cardboard Box Science at Home_Chemical Science and 500mm focal lengths for

and 500mm focal lengths for comparative refraction experiments

supplying clean low-voltage current to introductory electronics

Three-part skull model features painted muscle attachments and numbered details for cranial anatomy and muscle origin-insertion teaching

sized for the positive-rail side of color-coded bench wiring

Twin-bore brass block calorimeter at 1kg adjusted to +2% mass accuracy

Set of 50 Rocks Cardboard Box Science at Home_Chemical Science and 500mm focal lengths forSet 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.