We've all seen the bottles on the shelves at the grocery store, and many or most of us have sampled a few, but what is it ...

Minerals are typically formed when molten rock, or magma, cools, or by separating out of mineral-rich water, such as that ... gems and feature a number of different colors. Geologists can tell ...

NGSS 2-PS1-1: Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties. Students have looked at the properties of solids and in this ...