Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

IN any attempt at agriculture in arid or semi-arid regions, considerable trouble is likely to arise from accumulations of soluble salts at the surface of the soil. The trouble is often intensified by ...

From my limited chemical understanding calcium carbonate isn't very soluble at pHes > 8 (around 8.3 in my aquarium).<BR><BR>People will use things called "calcium reactors" where they'll load them ...

The process of rearranging molecules in two or more substances to create a new one may be monotonous to some – but for others, it is a stunning display of science. A new video has shared an up-close ...