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Science Quiz
Physical/Chemical Changes
Question | Answer |
---|---|
What is a physical change? | No new substance produced and action is reversible. |
What is a chemical change? | A new substance is produced and it is not easily reversible. |
Change in state or size is an example of what kind of change? | A physical change |
Rusting or burning is an example of what kind of change? | Chemical change |
In the burning of wood, is a new substance formed? | Yes. |
In the melting of ice, is a new substance formed | No. |
When you burn magnesium, is a new substance formed? | Yes. |
When you dissolve salt, is a new substance formed? | No. |
Is the burning of wood a physical or chemical change? | Chemical change |
Is the melting of ice a physical or chemical change? | Physical change. |
Is the burning of magnesium a physical or chemical change? | Chemical change |
Is the dissolving of salt a physical or chemical change? | Physical change |