O2=oxygen,
CO2=carbon dioxide, and
H2O=water.
We learned how to make fire ,with O2,fuel ,and heat.
We did the swoosh bottle , last week , but it didn't work real good.Mr.L. said that a candle can not burn in carbon dioxide so we tested it.We mixed vinegar and baking soda because it produces CO2.We put a lit candle inside the container with the vinegar and baking soda and it burned out! It did this because the fire it needed oxygen,fuel,and heat not CO2.
Love,MANGO:3
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