Chemical vs Physical Changes Challenge

Froggy Jumps

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Test your understanding of chemical and physical changes.

Diane Tayab

Philippines

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Chemical vs Physical Changes Challenge


Froggy Jumps Chemical vs Physical Changes ChallengeVersion en ligne Test your understanding of chemical and physical changes. par Diane Tayab 1 Which is a physical change? a Melting ice to water b Reacting vinegar and baking soda c Burning wood 2 Which indicates a chemical change has occurred? a formation of a precipitate b dissolving sugar in water c change in state from solid to liquid 3 What happens in a physical change? a Substance retains its identity b Energy released in a reaction c New substance formed 4 Which example is a chemical change? a Rust forming on iron b Crumbling chalk in a bowl c Boiling water 5 Which sign suggests a chemical change rather than a physical one? a Color change with emission of gas b Change of state from solid to liquid c Change in shape only 6 Dissolving salt in water is an example of a: a Physical change b Chemical reaction c Nuclear reaction 7 Which process is reversible and usually a physical change? a Wood burning to ash b Water freezing to ice c Explosive decomposition 8 Which statement describes a chemical change? a Temperature remains the same b No new substance formed c A new substance with different properties is formed 9 Which of the following is NOT a chemical change? a Baking a cake b Paper torn into pieces c Cooking an egg 10 Which is an example of a physical change? a Fermenting sugar to alcohol b Dissolving sugar in tea c Burning sugar