A no-prep, 4-lesson science unit on No KS1 science light/sound strand; honest links to KS2 science (Light, Year 3; Sound, Year 4) — taught here as working-scientifically observation and testing, written for Year 1 (ages 5-6). Phenomenon-first and three-dimensional: every lesson opens with something to wonder about and builds toward the unit’s big question. Open and teach — full teacher plans, projectable slides, three differentiated pupil worksheets per lesson, a complete printable lab pack, a knowledge organiser, and a baseline + end-of-unit assessment.

Big question: How are sounds made, and how do we see things?

What’s included

• 4 × Teacher lesson plans (Word) on the 5E spine (Engage · Explore · Explain · Elaborate · Evaluate)
• 4 × Pupil worksheets in 3 differentiated tiers (Support / Core / Stretch)
• 4 × Projectable slide decks (PowerPoint, 16:9 widescreen)
• 1 × Full lab pack (Word) — investigation question, fair-test variables, household and lab equipment lists, a real risk assessment, a blank results table, and analysis + conclusion scaffolds
• 1 × Knowledge organiser (Word, A4 landscape)
• 1 × Baseline + end-of-unit assessment with a teacher answer key and three-dimensional items
• Hand-coded diagrams with clear labels for the unit’s key ideas — never AI-generated
• Original illustrations for every phenomenon hook

Lesson outline

1. How sounds are made
2. We need light to see
3. Light through materials and shadows
4. Send a message with light or sound

Pupils will know

• Sound is made when something vibrates (shakes quickly back and forth).
• Sound can also make things shake, like rice jumping on a drum.
• We can only see things when light shines on them; in the dark we cannot see.
• Some materials let light through and some block it, making a shadow.
• We can send a message over a distance using light or sound.