1. Which of the following is a physical change?, Melting of ice, Rusting iron, Burning of wood, Cooking an egg, Which change produces a new substance?, Physical change, Chemical change, Change of state, Dissolving, Which statement is TRUE?, Physical changes always produce new substances., Chemical changes never produce gases., Physical changes usually do not form new substances., Chemical change are always reversible., Which observation provides the strongest evidence that a chemical change has occurred?, A substance is cut into pieces., A substance changes from solid to liquid., A new gas is produced during a reaction., A substance is moved to another container., Which of the following is usually reversible?, Ripening of fruits, Baking a cake, Souring of milk, Stretching of rubber band

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