Marlene McDermott

From Step 2007 Wiki

You're In Hot Water

Science Concept:Heating and cooling causes changes in the properties of water.


Observations of evaporation, condensation, and melting using a tea kettle and a bowl filled with ice...

Students add ice cubes to a bowl before holding it above the steaming kettle. Image:Ice_in_bowl-1.jpg



Students watch steam from water boiling in the kettle. Image:Steam_goes_up-1.jpg


Students observe ice cubes melting in the bowl. Image:Group_at_kettle-1.jpg



Students watch condensation beneath the bowl. Image:Looking_under_bowl-07.jpg



Making mini water cycle models...

A student fills canister to the halfway mark with water.

Image:Filling_with_water-1.jpg


Students tape the clear film canister inside a plastic zip lock bag.

Image:Brice_looks_in_bag-1.jpg


Student checks progress of mini water cycle model that has been in the window for a few days. Is there condensation on the sides of the bag? Has the water level in the film container changed? Did any of the water "rain" down to the bottom of the bag?

Image:Tapign_the_window-1.jpg


Applying and showing understanding...

A group of students work together on their poster explaining the water cycle.

Image:Poster-1.jpg


A student writes a story about her adventures as a drop of water traveling through the water cycle.

Image:Writing_story-1.jpg



















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