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WorksheetsChemical Changes in Matter
Total questions: 10
Worksheet time: 50mins
Identify the sign of chemical change that occurs in each situation.
Fireworks give off heat and light when they explode.
temperature change
color change
production of gas
Identify the sign of chemical change that occurs in each situation.
Wood turns to charcoal when burned.
temperature change
color change
production of gas
Identify the sign of chemical change that occurs in each situation.
When opening a soda can, the rapid production of bubbles (effervescence) is observed to indicate the escape of carbon dioxide.
temperature change
color change
production of gas
Identify the sign of chemical change that occurs in each situation.
When heating popcorn in a microwave, a popping sound is heard as an indication of the production of hydrogen gas.
temperature change
color change
production of gas
Identify the sign of chemical change that occurs in each situation.
A marshmallow is toasted over a campfire.
temperature change
color change
production of gas
Identify the sign of chemical change that occurs in each situation.
Pancakes are cooked during breakfast.
temperature change
color change
production of gas
Identify the sign of chemical change that occurs in each situation.
Acid rain damages a marble statue.
temperature change
color change
production of gas
Identify the sign of chemical change that occurs in each situation.
When two substances are mixed, the container holding the mixed substances become hotter after a while.
temperature change
color change
production of gas
Identify the sign of chemical change that occurs in each situation.
In baking, carbon dioxide bubbles cause the dough to rise.
temperature change
color change
production of gas
Identify the sign of chemical change that occurs in each situation.
Reddish-brown spots appear on a bread knife.
temperature change
color change
production of gas
