Overview:
A fair test is conducted to determine how much bicarb soda is needed to extinguish a tea-light candle when mixed with vinegar. When bicarb soda and vinegar are mixed together a chemical reaction is made thus extinguishing a lit candle, the candle is blown out as bicarb soda and vinegar creates carbon dioxide. A candle needs oxygen to burn, however when carbon dioxide is poured above the flame the candle will quickly be put out, as carbon dioxide is a heavier gas.
Aim:
To determine how much bicarb soda is needed to extinguish a tea-light candle when mixed with vinegar
Hypothesis:
When 20mL of bicarb soda is mixed with vinegar, the mixture will extinguish the tea-light candle
Variables:
Independent variable: The amount
A fair test is conducted to determine how much bicarb soda is needed to extinguish a tea-light candle when mixed with vinegar. When bicarb soda and vinegar are mixed together a chemical reaction is made thus extinguishing a lit candle, the candle is blown out as bicarb soda and vinegar creates carbon dioxide. A candle needs oxygen to burn, however when carbon dioxide is poured above the flame the candle will quickly be put out, as carbon dioxide is a heavier gas.
Aim:
To determine how much bicarb soda is needed to extinguish a tea-light candle when mixed with vinegar
Hypothesis:
When 20mL of bicarb soda is mixed with vinegar, the mixture will extinguish the tea-light candle
Variables:
Independent variable: The amount