Science TEKS 5.6C The student is expected to compare the properties of substances before and after they are combined into a solution and demonstrate that matter is conserved in solutions.
Key Points
- A solution is a special kind of mixture in which a solute dissolves in a solvent. In 5th grade, we focus on solids and liquids as the solutes and water as the solvent.
- Some physical properties may change when a solution forms. For example, salt particles are too small to be seen in a saltwater solution. Even though the salt appears different, it is still present and still maintains its mass.
- Matter is conserved when making a solution. The total mass of the substances before forming a solution is equal to the mass of the solution.
- We can heat solutions to separate them. For example, the water in saltwater evaporates, leaving behind salt.
STAAR Analysis
Let’s look at three past STAAR questions for 5.6C and then how strong instruction can prepare students for these types of questions.
We created a set of 3 demonstrations to ensure students are exposed to the concepts they will encounter on STAAR.
Students explore properties of ingredients before/after dissolving, make observations, and discover how mass is conserved.
Materials are simple: water, sugar, lemon juice, and a packet of powdered drink mix.
See it on TPT: Solutions and Conservation of Mass in Mixtures
Resources for 5.6C
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