Year 3 - Science
Strongest magnet (non-statutory)
Simple forces including magnets
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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 how objects move on different surfaces and examines magnetic forces, including attraction, repulsion, and magnetic materials. It covers identifying magnetic poles and predicting interactions and emphasizes practical tests, observations, and presenting findings.
Lesson Summary
You will learn to explore the strength of different magnets and find fair ways to compare them.
Key Notes
- Magnets vary in strength, with strong magnets creating larger magnetic forces
- Magnetic forces can act at a distance, so magnets do not need to be touching to exert a force
- Scientists ask questions and then plan how to carry out the right type of investigation to find answers
- The results of a scientific investigation can be compared to other investigations that have been carried out
Vocabulary To Learn
- strength: The strength of something is shown by how well it can withstand a force or pressure.
- magnetic force: Magnetic force is the force caused by a magnet.
- material: The material is the thing that objects are made from such as wood, metal or plastic.
- distance: The distance between two points is the length of space between them.
- compare: We compare things by looking at what is the same and what is different.
Common Mistakes To Avoid
- Larger magnets are always stronger than smaller magnets.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
Magnets vary in strength, with strong magnets creating larger magnetic forces. Magnetic forces can act at a distance, so magnets do not need to be touching to exert a force.
2. Define this scientific word and use it in context. 'strength'
The strength of something is shown by how well it can withstand a force or pressure. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: Larger magnets are always stronger than smaller magnets. Correction: Explicit teaching as well as opportunities for children to explore different size magnets and their strengths.
More Lessons In This Unit
- Blocking magnetic force Study Guide
- Contact forces Study Guide
- Different magnets and their parts Study Guide
- Different surfaces in real life (non-statutory) Study Guide
- Different surfaces: do and review Study Guide
- Different surfaces: plan Study Guide
- Magnetic and non-magnetic materials Study Guide
- Magnetic force (non-statutory) Study Guide
- Magnetic force at a distance Study Guide
- Putting magnets together: attract or repel Study Guide
- Using magnets to solve problems (non-statutory: Scientists and Engineers) Study Guide
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