This experiment went well the last time.
My first attempt failed. There was not enough CO2 transferred. I know this because the matches did not go out. The matches stayed lit because it feeds on O2. CO2 smothers the fire.
The second and third experiments were a success because we shortened the straw. This transferred more CO2 to the glass successfully.
The experiment was making CO2 for my earth atmosphere/greenhouse because there is plant life inside.
We used:
Baking Soda
Vinegar
Cup with a lid and hole (for straw)
Straw
Glass to transfer and observe CO2
Matches to prove CO2 presence and density