CAST 7 - Do Now 2/1

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1 Asɛmmisa

Students set up three glass cups with water as described in the table and record their observations. The students develop a model to explain why water droplets form on the outer surface of the cup when it has water and ice.

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Based on the observations, how should the formation of water droplets be described in the model?

A. Ice in a cup makes water droplets form on the outer surface more slowly.

B. Invisible particles of water in the air run into the cold outer surface and form droplets.

C. Small droplets of water escape through the top of the cup and land on the outer surface.

D. Particles of water shrink when cold and move through tiny holes in the cup to the outer surface.