10. Elsa burned her scratch paper and she observed that the paper tumed to ashes. What factor that caused the changes? A. change of temperature B. the application of heat C. presence of oxygen D. the absence of heat

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Answer:B. The application of heat – Burning is a chemical change caused by heat. When Elsa applied heat to the paper, it reacted and turned to ash, showing a new substance was formed.

10. Elsa burned her scratch paper and she observed that the paper tumed to ashes. What factor that caused the changes? A. change of temperature B. the application of heat C. presence of oxygen D. the absence of heat

Answer (1)

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