BFSU Enrichment
LESSON A-5

Distinguishing Materials

A few materials — wood, metal, glass, plastic, cloth, clay — make almost everything, and every material has its own ways you can test.

Free enrichment to teach alongside Building Foundations of Scientific Understanding, Volume 1 by Dr. Bernard J. Nebel. It reproduces none of his text — you'll want the book to teach from it. Get the book on Amazon →
Developed by Jesse Genet · @jessegenet
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⬇ Full packetEverything, print-ready ⬇ Kid sheets onlyWhat goes in the notebook ⬇ Teacher sheets onlyGuide · oration · supply list ⬇ Colour game componentsThe Material Hunt legend
Posters
Few Materials Make Everything
Few Materials Make Everything
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One Cup Five Materials
One Cup Five Materials
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Every Material Has Its Own Ways
Every Material Has Its Own Ways
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The activities — hands-on experiment cards
Three Spoons Investigation
Card 1 · Kids hands-on

Three Spoons Investigation

Everyone KNOWS which spoon is metal — but how? Passing wood, metal, and plastic spoons around builds the big word: materials are told apart by their properties — feel, weight, sound, hardness.

⬇ This card
Material Hunt — Sticky-Note Tagging
Card 2 · Kids hands-on

Material Hunt — Sticky-Note Tagging

Every child tags the room with colour-coded sticky notes, and a whole room of objects collapses onto four sticky colours: countless objects, only a few materials.

⬇ This card
Same-Size Cube Line-Up
Card 3 · Kids hands-on

Same-Size Cube Line-Up

Every cube is exactly the same size and shape — so every difference the kids feel, hear, and weigh must come from the material alone. A fair test, in the palm of a hand.

⬇ This card
Material Stress Test
Card 4 · Teacher demo

Material Stress Test

Five identical tests on six matched strips — scratch, bend, water, magnet, light — turn "hard," "flexible," and "brittle" into measured verdicts instead of adjectives.

⬇ This card
The Cold-Touch Mystery
Card 5 · Kids hands-on

The Cold-Touch Mystery

Nothing is heated, nothing is chilled — and one block still feels icy. The IR thermometer proves both are the same temperature: feels-cold really means carries-heat-away-fast.

⬇ This card
Hot Chocolate Handle Test
Card 6 · Teacher demo

Hot Chocolate Handle Test

Why pot handles are never bare metal: one property — moving heat fast — is perfect for the pan and terrible for the handle. The same property can be a gift or a hazard.

⬇ This card
The Wrong Tool for the Job
Card 7 · Teacher demo · the centrepiece

The Wrong Tool for the Job

Same nail, same board, four hammers — the job succeeds or fails purely on the material. Each failed hammer names the missing property better than any success could.

⬇ This card
One more idea — a bonus for the review
A mystery material being identified by tests
🎁 Reveal at the review

Every Material Has a Test

Hand the kids a mystery material and they can name it — with tests. Does a magnet grab it? Does it float? Does it bend or snap? Scientists identify things by testing, not just looking.

A peek ahead → one test is so surprising it gets a whole lesson of its own — the magnet test (Lesson A-5A).
⬇ Bonus card
The song
🎵
Made of This
A-5's sing-along — press play
⬇ Lyric sheet
In the student binder
📖OverviewThe big idea, how to tell materials apart & words to know — for the notebook.⬇ ✎CopyworkSee it, trace it, write it — wood, metal, glass, plastic, in big primer handwriting.⬇ 🗂️WorksheetChart the material hunt in a tally bar chart — then guess, test, and verdict the three spoons.⬇ 🎵Song sheetThe "Made of This" lyrics — wood knocks, metal rings, plastic clicks, glass tings.⬇
Everything that's included