A single diagram carries this 3-page 2nd grade sheet on water. It shows ice cubes in a glass, water in a pot and steam over a kettle, joined by arrows numbered 1 to 3 for melting, heating to steam and freezing again. Page 1 asks students to name each state with a word bank. Page 2 asks whether heat is added or taken away for each arrow and finishes a sentence about melting ice. Page 3 has the answers.
“Name ice, liquid water and steam as solid, liquid and gas.”
Page 1 asks for the state of ice, water in a pot and steam from a kettle.
“Tell whether heat is added or taken away when water melts, turns to steam or freezes.”
Page 2 has students circle the change for each of the three arrows.
A diagram of ice in a glass, water in a pot and a steaming kettle, marked A, B and C. Students choose solid, liquid or gas from a word bank for each.
A three-row table for arrows 1 to 3. Students circle heat added or heat taken away, then complete the sentence "When ice melts, it becomes a ___."
Solid, liquid and gas for A to C, heat added for arrows 1 and 2, heat taken away for arrow 3, and liquid for the sentence.
Trace the loop
Have students follow the three arrows with a finger before they answer. The curved arrow 3 is the one most often skipped.
Kettle talk
Ask what happens to steam that touches a cold window. It shows the page 2 change running in the opposite direction.
Sentence stems
Once page 2 is done, ask students to write "When water freezes, it becomes a ___." The pattern carries over to the next change.
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