Year 4 - Science
Louder and quieter sounds
Introduction to sound
Study Hub
Study Guides
This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit explores how sounds are made through vibrations, how they travel through mediums, and how pitch and volume relate to vibration strength. It also covers why sounds get fainter with distance. The emphasis is on practical enquiries, observations, and using results to draw conclusions.
Lesson Summary
You will learn to compare the volume of different sounds and identify loud and quiet sounds.
Key Notes
- Sounds are made when an object vibrates.
- Large vibrations create loud sounds and small vibrations create quiet sounds.
- Volume describes how loud or quiet a sound is.
- The volume of a sound can be changed.
Vocabulary To Learn
- vibrations: A vibration is when an object moves very fast from side–to–side.
- loud: A loud sound is one that is easily heard, such as shouting.
- quiet: A quiet sound is one that is not as easily heard, such as a whisper.
- volume: The volume of a sound is how loud or quiet it is.
- compare: We compare things by looking at what is the same and what is different.
Common Mistakes To Avoid
- Pupils may only think that larger objects make louder sounds. They may not link the size of vibrations to the volume of sound.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
Sounds are made when an object vibrates. Large vibrations create loud sounds and small vibrations create quiet sounds.
2. Define this scientific word and use it in context. 'vibrations'
A vibration is when an object moves very fast from side–to–side. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: Pupils may only think that larger objects make louder sounds. They may not link the size of vibrations to the volume of sound. Correction: Ensure plenty of opportunities for pupils to strike, tap, blow and shake objects to see how this affects the volume of sound produced.
More Lessons In This Unit
- Changing the pitch of sounds Study Guide
- Distance from sounds: do and review Study Guide
- Distance from sounds: plan Study Guide
- Higher and lower sounds Study Guide
- How sounds are made Study Guide
- How vibrations travel Study Guide
- Measuring the volume of sounds Study Guide
- Musical instruments and pitch Study Guide
- Noise pollution (non-statutory Climate Change & Sustainability) Study Guide
- Sound insulation Study Guide
- Vibrations and solid materials Study Guide
Browse all guides in the Year 4 Science guide library.