Year 5 - Science
How scientists work
Properties, changes and separating materials
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit explores the properties of everyday materials, including hardness, solubility, and conductivity. It covers reversible changes like dissolving and mixing, and irreversible changes such as burning. Emphasis is on scientific enquiries, data recording, and presenting findings with evidence.
Lesson Summary
You will learn to describe how some scientists control variables and why some scientists do not.
Key Notes
- Scientists who investigate materials often control, measure and change variables.
- Control variables are variables that are kept the same throughout an investigation.
- There are some types of investigations where some, but not all, variables can be controlled.
- Astronomers make observations and look for patterns in their data, however, they cannot control variables in space.
- The 21st century astronomer Maggie Aderin–Pocock makes her observations using instruments on satellites in space.
Vocabulary To Learn
- control variable: Control variables are variables that are kept the same throughout an investigation.
- variables: A variable is something that can be changed, measured or kept the same in a comparative or fair test.
- microorganism: A microorganism is a very tiny living thing.
- antiseptic: An antiseptic is used to prevent the growth of microorganisms.
- astronomer: An astronomer is a scientist who observes objects in space.
Common Mistakes To Avoid
- Scientific enquiry is only valid if variables can be controlled and changed.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
Scientists who investigate materials often control, measure and change variables. Control variables are variables that are kept the same throughout an investigation.
2. Define this scientific word and use it in context. 'control variable'
Control variables are variables that are kept the same throughout an investigation. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: Scientific enquiry is only valid if variables can be controlled and changed. Correction: Teaching slides will explain how some scientist cannot control variables and look for patterns in data and observations instead.
More Lessons In This Unit
- Bioplastics (non-statutory Climate Change & Sustainability) Study Guide
- Burning plants as fuel (non-statutory Climate Change & Sustainability) Study Guide
- Burning: an irreversible change Study Guide
- Everyday uses of thermal insulators Study Guide
- Greenhouse gases (non-statutory Climate Change & Sustainability) Study Guide
- Insulating our homes and schools (non-statutory Climate Change & Sustainability) Study Guide
- More irreversible changes Study Guide
- More reversible changes Study Guide
- Properties of materials Study Guide
- Providing safe drinking water (non-statutory Climate Change & Sustainability) Study Guide
- Recovering insoluble solids Study Guide
- Removing salt from seawater (non-statutory) Study Guide
- Reversible changes of state Study Guide
- Rusting: an irreversible change Study Guide
- Separating soluble solids from solutions Study Guide
- Soluble and insoluble Study Guide
- Thermal insulators: do and review Study Guide
- Thermal insulators: plan Study Guide
- Uses of everyday materials Study Guide
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