Summary Use a pH test to find out whether different kinds of water are acidic, basic or neutral. Science content Chemistry: States of Matter, Properties of Materials (K-7) Lessons activity is in Beach Exploration and Studies Materials water from different sources: seawater, drinking water pH test kit that can distinguish between pH 6, 7 and 8 Procedure Test seawater for pH (it is generally pH 8 or basic). Compare to drinking water (neutral or slightly acidic). Compare to stream water (usually neutral). Students might also want to test the pH of their spit (neutral). Grades taught Gr 4 Gr 5 Teaching site ingridscience afterschool
