Study Hub

Study Guides

This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.

Back to Study HubBrowse Year 7 Science Guides

Year 7 - Science

Solubility: practical

Solutions

Unit Summary

This unit explores the concepts of pure substances, mixtures, and diffusion in liquids and gases. It emphasises accuracy, precision, and the use of appropriate techniques during investigations. The focus is on making predictions and recording reliable observations.

Lesson Summary

You will learn to carry out a fair test to investigate solubility and record the measurements in an appropriate table of results.

Key Notes

  • The solubility of a substance could depend upon the size of the solute pieces, the choice or temperature of the solvent.
  • The independent and dependent variables, and any measurements taken during an investigation, are recorded in a table.

Vocabulary To Learn

  • 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 Mistakes To Avoid

  • Pupils regularly confuse the words 'table' and 'graph'.

3 Quick Questions (With Answers)

1. Explain the scientific idea in this lesson using two key points.

The solubility of a substance could depend upon the size of the solute pieces, the choice or temperature of the solvent. The independent and dependent variables, and any measurements taken during an investigation, are recorded in a table.

2. Define this scientific word and use it in context. '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. Include the word in a full scientific explanation, not as a single label.

3. Correct this common scientific misunderstanding.

Mistake: Pupils regularly confuse the words 'table' and 'graph'. Correction: Stress that a table of results holds measurements / observations (like a dinner table holds plates), while a graph is only on *graph* paper.

More Lessons In This Unit

Browse all guides in the Year 7 Science guide library.