Grade 5 Lesson plan
Clearing Cloudy Water at Foxglen: A Grade 5 Coagulation Lesson
A grade 5 science lesson where students run a tabletop coagulation demonstration, adding a coagulant to cloudy water to see solids clump and settle.
NGSS · Grade 5
5-PS1-4 Investigate whether mixing substances makes new substances
Conduct an investigation to determine whether the mixing of two or more substances results in new substances.
Why water teaches this standard well
Adding alum to cloudy water so that particles clump and settle is a real treatment step students can run as this investigation: two substances mix and something new forms. It introduces coagulation, the chemistry that makes muddy source water clear enough to drink.
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3 materials aligned to 5-PS1-4
Lesson plans
Labs & experiments
Grade 5 Lab / experiment
Drummond Springs Hard Water: A Grade 5 Mixing Test
Teams stir Epsom salt and washing soda into cups of warm water to find out whether mixing two clear solutions makes a new white solid, as a softening plant does.
Quizzes & test questions
Grade 5 Quiz & test questions
Grazebrook's Salty Well: A Grade 5 Matter and Water Test
A 22-point end-of-unit test on dissolving, weight conservation, and mixing, set at a fictional town whose well water tastes salty, with twelve mixed-format items.