Science topic

Light and sound

How light travels and makes shadows and colours, and how sound is made and heard.

Lessons

Light and Shadows

Why does my shadow follow me, and why is it so long in the morning? Young scientists chase their shadows, track the Sun across the day and test which things let light through.

Grades K–2Science

Sound: Can You See a Sound?

Can you see a sound? Young scientists make rice dance on a drum, talk through a string telephone and build a rubber-band guitar to find out that every sound starts with something shaking.

Grade 4Science

Simple Circuits: Make It Light Up

Light a bulb with one wire, hunt for materials that let electricity through, find out why string lights all go dark at once, and build a burglar alarm. Four hands-on lessons on closed loops, safe and cheap.

Grades K–5Science

Earth and Sky at Home

Make a rainbow on the kitchen floor, grow crystals on a windowsill and build a cloud in a jar. Three classic home experiments that actually work, with the real science explained for grown-ups.

Grades 3–5Science

Bouncing Light: Mirrors, Water and Colour

Steer a beam around a wall with mirrors, find out why a pencil looks broken in water, and split white light into the colours hiding inside it. Three hands-on lessons on reflection, refraction and colour that build on shadows and work in any climate.

Grades 5–8Science

The Reason for the Seasons: Tilt, Daylight and the Solstice

Is summer when Earth is closest to the Sun? Students test the idea with real 2026 orbit distances and city temperatures from both hemispheres, walk a human orbit, graph real solstice day lengths from the Arctic to Tierra del Fuego and work out why a high Sun heats more than a low one. Nothing to buy: just the printed sheets and the room.