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Reversible Changes Activity

Tick the box with the correct answer. Read the reversible changes lesson.

[{ "ques": "A reversible change is a change...", "answers": [{ "opt": "which cannot be undone or reversed", "selected": "false", "ans": "false" }, { "opt": "which can be undone or reversed", "selected": "false", "ans": "true" }, { "opt": "which forms new materials", "selected": "false", "ans": "false" }, { "opt": "Answers (2) and (3) are correct", "selected": "false", "ans": "false" } ] }, { "ques": "Another name for reversible changes is...", "answers": [{ "opt": "Chemical Changes", "selected": "false", "ans": "false" }, { "opt": "Permanent Changes", "selected": "false", "ans": "false" }, { "opt": "Physical Changes", "selected": "false", "ans": "true" }, { "opt": "Non of the above", "selected": "false", "ans": "false" } ] }, { "ques": "A reversible change...", "answers": [{ "opt": "might change the physical appearance of a substance", "selected": "false", "ans": "true" }, { "opt": "might not change the physical appearance of a substance", "selected": "false", "ans": "false" }, { "opt": "produces a new substance", "selected": "false", "ans": "false" }, { "opt": "Answers (1) and (3) are correct", "selected": "false", "ans": "false" } ] }, { "ques": "Examples for reversible changes are...", "answers": [{ "opt": "Melting", "selected": "false", "ans": "false" }, { "opt": "Freezing", "selected": "false", "ans": "false" }, { "opt": "Dissolving", "selected": "false", "ans": "false" }, { "opt": "All of the above", "selected": "false", "ans": "true" } ] }, { "ques": "Which one is not an example for a reversible change...", "answers": [{ "opt": "Melting candle wax", "selected": "false", "ans": "false" }, { "opt": "Freezing water", "selected": "false", "ans": "false" }, { "opt": "Dissolving salt in water", "selected": "false", "ans": "false" }, { "opt": "Burning paper", "selected": "false", "ans": "true" } ] } ]