Is boiling water a chemical change or a physical change?

Is lighting a firework considered a physical or chemical change?

One of the ways you can identify a physical change is:

When food is digested in your stomach, is that a chemical or physical change?

When food is chopped by a knife in the kitchen, is that considered a physical or chemical change?

Which one is NOT a sign of a physical change?

When a solid, new substance is formed from two liquid substances, what is that called?

What is one nonexample of a chemical reaction?

Which of the below is not evidence of a chemical reaction?

Is a temperature change ALWAYS an indicator of a chemical change?

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