Transparent, Translucent & Opaque

ScienceWaves, Light & SoundAges 6–7

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

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Teaching Table

Set out your lesson

Classify light transmission using observations rather than names alone.

Activity

Follow this model in an accessible mode before attempting independent work. Graph ordering is not learner mastery; revisit prerequisites if the guided task still needs full modeling.

Policy

Check readiness rather than assuming source graph order establishes attainment.

Optional: adult-operated cool torch, clear plastic, tracing paper, cardboard, foil, clear glass held by adult, and tissue. No shining into eyes, lasers or hot lamps. If items are absent, use supplied cases and mark actual tests pending. Open Show (S), then Guided (G), then Try (T). Hide earlier work and keys before Try. Use only the supplied stage material; do not invent additional cards. Pause or split the session if needed.

Materials are ready in each step. Use them on screen or print just the current step. Put teaching examples aside before the learner tries.

What this lesson covers and its limits

These are bounded opportunities, not learner attainment. Partial and blocked source requirements remain so.

partial: Investigate the effect of placing objects made of different materials in the path of a beam of light, discovering transparent, translucent, and opaque materials
Six-item real investigation remains conditional; supplied cases do not satisfy real testing.
partial: Test at least six materials and classify them as transparent, translucent, or opaque
Six-item real investigation remains conditional; supplied cases do not satisfy real testing.
partial: Define transparent (light passes through clearly), translucent (some light passes, blurry), opaque (no light passes)
Six-item real investigation remains conditional; supplied cases do not satisfy real testing.
partial: Predict whether a given material will let light through based on its appearance
Six-item real investigation remains conditional; supplied cases do not satisfy real testing.
partial: Can {{name}} test different materials with a torch and sort them into ones light goes through, ones that block light, and ones in between?
Six-item real investigation remains conditional; supplied cases do not satisfy real testing.

Six-item real investigation remains conditional; supplied cases do not satisfy real testing.

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Classify light transmission using observations rather than names alone.

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Check understanding

Test at least six materials and classify them as transparent, translucent, or opaque
Define transparent (light passes through clearly), translucent (some light passes, blurry), opaque (no light passes)
Predict whether a given material will let light through based on its appearance

“Can your child test different materials with a torch and sort them into ones light goes through, ones that block light, and ones in between?”

Curriculum record

Type: Procedural
Subject: Science
Domain: Waves, Light & Sound
Age range: Ages 6–7

Standards

ngss-k5:1-PS4-3