1) A ………………happens when two or more elements or compounds combine to make a new substance. a) chemical reaction b) physical reaction c) combination reaction d) decomposition reaction 2) In a reaction, chemical ……………are broken a) bonds b) Atoms c) moles 3) choose a chemical reaction : a) baking bread b) Melting an ice cube c) Boiling water d) Breaking a glass 4) choose a chemical reaction:: a) Chopping wood b) iron rust c) Chopping an apple d) Mixing salt and sand 5) choose a chemical reaction... a) Mixing flour b) Mixing water and oil c) forming water d) Crushing a can

6th Grade quiz

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