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WorksheetsGeneration Genius Chemical v Physical Changes
Total questions: 8
Worksheet time: 8mins
When two substances are mixed and a new substance it formed, this is called a (a) change.
Placing the spoon in hot water was a physical change since the melted metal was still…
gallium
iron
steel
aluminum
When a substance changes states (melts, evaporates, etc.) it is often a type of (a) change.
When something burns, it is a ____ .
physical change
chemical change
True or false: since gas is detected during the candy + soda demo, it is an example of a chemical change.
true
false
What is the evidence that the gas made in the mentos + soda demo was carbon dioxide?
There was an explosion.
The candles went out.
Soap went all over the table.
You could read the secret message.
Which of these is the most reliable way to see if a new gas has formed?
put a balloon on a scale
flame test
measure temperature
smell it
Milk spoiling is an example of which type of change?
physical change
chemical change
both
neither
