---
title: "Transparent, Translucent & Opaque"
description: "Investigate the effect of placing objects made of different materials in the path of a beam of light, discovering transparent, translucent, and opaque materials"
canonical: https://lightmysky.com/learn/science/transparent-translucent-and-opaque-mt_p6frRFuxS6
source: https://lightmysky.com/learn/science/transparent-translucent-and-opaque-mt_p6frRFuxS6.md
retrieved: 2026-10-19
---

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# Transparent, Translucent & Opaque

Investigate the effect of placing objects made of different materials in the path of a beam of light, discovering transparent, translucent, and opaque materials

Subject: Science · Area: Waves, Light & Sound · Ages 6 to 7
Page: https://lightmysky.com/learn/science/transparent-translucent-and-opaque-mt_p6frRFuxS6

## Ready when they can

- Test at least six materials and classify them as transparent, translucent, or opaque
- Define transparent (a clear view through it), translucent (light passes through but is scattered, giving an unclear view), and opaque (light does not pass through it)
- Predict whether a given material will let light through based on its appearance

## Lesson: Transparent, translucent, or opaque?

You have learned words for materials and light. A transparent material lets light through with a clear view. You can see shapes or words clearly through clear window glass. Transparent does not mean that every bit of light passes through.

*(drawing: These are clues for sorting samples, not measured amounts of light.)*

Translucent materials scatter light passing through them, giving an unclear view. Frosted plastic may show a glow or blurry shapes. A glow through the sample means it is not opaque.

Opaque materials block light, like a thick wooden board. Count only light-blocking results as opaque. Blurry words alone do not prove that a material is opaque.

**Example.** With an adult, test six safe samples: clear plastic, water in a clear sealed bottle, wax paper, frosted plastic, wood and thick card. Predict first. Keep the battery torch and positions unchanged; change only the sample for a fair comparison. Check light passing through and the view through each sample. Sort the results.

*(drawing: Your test may change your prediction. Never shine the torch into eyes.)*

Choose a material to fit a job. A model shade should spread torch light without blocking it completely. Translucent frosted plastic scatters light and can do that. Clear plastic gives a clear view through it; metal blocks light. Test a model with a battery torch, not a hot lamp.

**Recap.** Transparent gives a clear view. Translucent scatters light and gives an unclear view. Opaque blocks light. Predict, test and sort using observations.

## Practice

8 questions on this page, each with its working shown.

## Needs first

- [Light & seeing in the dark](https://lightmysky.com/learn/science/light-and-seeing-in-the-dark-mt_4i-FKXDDXh)
- [Describing Material Properties](https://lightmysky.com/learn/science/describing-material-properties-mt_auVZZEuXjs)
- [Light & sound vocabulary](https://lightmysky.com/learn/science/light-and-sound-vocabulary-mt_YPSx5pbpVl)

## Opens up

- [How Shadows Form](https://lightmysky.com/learn/science/how-shadows-form-mt_Oru08pKlxd)