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.
NGSS · Grade 5
5-PS1-1 Model that matter is made of particles too small to see
Develop a model to describe that matter is made of particles too small to be seen.
Clarification statement: Examples of evidence supporting a model could include adding air to expand a basketball, compressing air in a syringe, dissolving sugar in water, and evaporating salt water.
Assessment boundary: Assessment does not include the atomic-scale mechanism of evaporation and condensation or defining the unseen particles.
Why water teaches this standard well
Dissolving and evaporating salt water are two of the clarification statement's own evidence examples, and they are exactly how a treatment operator thinks about dissolved solids. Watching salt vanish into water and reappear as crystals gives students a water-based reason to believe in particles too small to see.
Materials tagged with this code are written to the full standard , including its clarification statement and assessment boundary, and each carries a written note explaining the alignment. See how we review materials.
2 materials aligned to 5-PS1-1
Labs & experiments
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.