Evidence of Chemical
Reactions
Cool Chemical Reactions
Fizz
Did the reaction produce
bubbles?
Fizzes
Aroma
Did the reaction produce
a smell?
Example: Rotten Eggs
Replacement
Did the reaction replace any of
the original substance?
Example: Burning wood turns to ash
Temperature
Did the reaction create a
temperature change, hot or
cold?
(New) Substance
Did the reaction produce a new
substance?
Example: Formation of a gas, formation
of a precipitate