Slide 1 Ch-10 Hard and Soft Water Science 7th grade Slide 2 Slide 3 Introduction. What is Water Hardness? Video : https://www.youtube.com/watch?v=emFJltOAfTohttps://www.youtube.com/watch?v=emFJltOAfTo…
Slide 1 The Lithosphere and the Hydrosphere Observatory Chapter 6: pages 182-219 ST EST AST ES Slide 2 Why study the lithosphere and hydrosphere? The earth’s crust, freshwaters…
Chapter 2 Minerals Minerals A mineral is an inorganic (not formed from living things), solid material found in nature that has a definite crystal structure. There are 4000…
THE BASICS of SFR Spot Free Rinse Systems - working to keep your reputation spotless Spot Free Rinse water must have less than 40 ppm of TDS. Our preferred is 25 ppm of TDS…