PS.K.1.2: Engage in argument from evidence to summarize how different materials…

Test It, Choose It: Materials Grades K–2

What is a spoon made of, and why isn't it made of paper? Children sort objects by material, test which materials keep the rain out and which keep the sun off, and choose the right material for a job. Kitchen, stationery and recycling-bin materials, no weather needed.

• Which material keeps the rain out? 45–55 min

  Children stretch squares of cloth, paper, foil, plastic and cardboard over cups, drip ten drops of water on each and look inside to see which ones let the water through. Then they choose a material and build a roof that keeps a toy dry.

• Which hat keeps the sun off? 50–60 min, or two 30-minute parts

  Children lay dark cloth, light cloth, paper, foil and card in the sun or under a lamp, feel which gets warmest and test which makes the darkest shadow. They also stretch, bend and squash materials to see which spring back. Then they design and build a sun hat and say why they chose each material.

Printable practice for PS.K.1.2

• Test It, Choose It: Materials workbook included with the unit

  2 English-support pages, 2 practice pages, 2 readings, 1 word wall, 1 unit review, 1 unit test, with answer keys.

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