Solubility: practical
I can carry out a fair test to investigate solubility and record the measurements in an appropriate table of results.
- Year 7
Solubility: practical
I can carry out a fair test to investigate solubility and record the measurements in an appropriate table of results.
Lesson details
Key learning points
- Solubility depends on the solute, the solvent and the temperature.
- The independent and dependent variables, and any measurements taken during an investigation, are recorded in a table.
Keywords
Dissolving - The process in which a substance's particles separate and spread uniformly throughout the particles of a solvent, resulting in the substance no longer being seen.
Solubility - Solubility refers to how well a solute is able to dissolve in a solvent to create a solution.
Variable - A variable is anything that can change in an investigation.
Table of results - An orderly way in which to record data.
Anomalous - A result that does not fit an obvious trend.
Common misconception
Pupils regularly confuse the words 'table' and 'graph'.
Stress that a table of results holds measurements / observations (like a dinner table holds plates), while a graph is only on *graph* paper.
Equipment
Content guidance
- Risk assessment required - equipment
Supervision
Adult supervision required
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What does Brownian motion describe?
Q2.Match the measurement unit to what it measures:
Q3.What is a mixture?
Q4.The term for a solid that dissolves in a solvent to form a solution is called a...
Q5.What does the conservation of mass mean in the context of making a solution?
Q6.When an insoluble solid is added to a liquid, a common observation is that the substance to the bottom of the container over time.
Assessment exit quiz
6 Questions
Q1.In any investigation, the factor that is changed by the scientist is called the variable.
Q2.Put the steps in the correct order for investigating how temperature affects speed of dissolving (starting with adding the solvent to the beaker):
Q3.Match the term to its definition:
