Name: ______________________________ Date: ______________ Period: ______ Station: ______

Directions: Fill in Part 1 during the slides. Take this sheet to the station for Part 2. Fill in Part 3 during the teacher demonstration. Finish Part 4 after the envelope is opened.

Station rules: one drop of water, not a puddle. Swatches stay at the station. Wet swatches go on the paper towel with the letter showing. Nothing goes in a mouth.

Word bank in other languages

[Check with a native speaker before printing.]

Part 1: Two families of fiber

1a. Sort the eight fibers. cotton, wool, silk, linen, polyester, nylon, rayon, spandex

1b. Name the source of each natural fiber.

1c. The class table. Fill in as the slides go. Use words like high, low, some, none, cheap, costly.

Part 2: The station record

Three tests on six swatches. Circle or write in every box. Ninety seconds per swatch.

Test 1, feel: rub it between finger and thumb. Circle one in each pair.
Test 2, stretch: pull gently across, then let go. Did it come back?
Test 3, water drop: one drop, count to ten. Soaked in, beaded up, or spread out?

Part 3: The burn test (teacher demonstration only)

You are seated behind the line. Nobody stands up. Nobody films it.

Finish the sentence: A fiber that melts is dangerous near heat because

If there is no flame today, do the wrinkle test instead. Crush each swatch in your fist for ten seconds, then open your hand. Rate the wrinkle 1 (none), 2 (some), 3 (a lot).

Part 4: The reveal and the four use questions

4a. Write the real fiber next to each letter, then check your guess.

4b. For each use, name the swatch letter you would pick and give two pieces of evidence from your own test data.

Exit card (tear off or write on an index card)

3 things you learned about a fabric with your hands today:

1. ____________________________ 2. ____________________________ 3. ____________________________

2 fibers you can now tell apart, and how:

1 question about fibers or care:

Teacher key

Part 1a. Natural: cotton, wool, silk, linen. Manufactured: polyester, nylon, rayon, spandex. Rayon is the one students miss; it starts as wood pulp, which is a plant, but it is processed into fiber in a factory, so it is counted as manufactured.

Part 1b. Cotton: a plant, the fluff around the seed of the cotton plant. Wool: an animal, the fleece of a sheep (other animal fibers include alpaca, mohair from goats, and cashmere). Silk: an insect, the thread a silkworm spins for its cocoon. Linen: a plant, the stem of the flax plant.

Part 1c, expected answers.

Part 2, the station set. Label the swatches A to F in this order or your own; keep the answer envelope matched to the labels.

Score the station record complete, partial, or missing: complete means three tests filled for at least four swatches, with a real use named (not a color) for each.

Part 3, the burn test results. These are the standard identification results.

The melt sentence: because melted fiber sticks to skin and keeps burning it, so the burn is worse and it cannot be brushed off.

Part 4b, defensible answers. The fabric named matters less than the evidence.

Standards checked by this handout: NYS ATPD 1. Selection a) and 3. Maintenance a); CTE HSW 4. Classroom and Workplace Safety a); CTE SUS 2. Environmental Management e); NYS FACS Standard 2 (Intermediate) PI C; CDOS 3a Basic Skills; National FCS 3.0 16.2.1, 16.2.2, and 16.2.4.