mixing oil, vinegar and bicarb soda together
This term we have been learning about science, mostly the three states of matter (with are gas, liquid and solid). This week we conducted our own experiment. Shanice and I experiment was mixing bicarb soda, vinegar and oil together. Changes to materials can be reversible, such as melting, freezing, evaporating; or irreversible, such as burning and rusting
Aim: To identify the effect of oil, vinegar and bicarb soda combined in an open bottle.
Hypothesis and prediction: We think there will be a chemical reaction but the oil will do nothing to the experiment.
…If you would wish do read our procedure text click here
Observations if you wish to see a photo of the experiment click here
Shanice’s observation- When we poured the ingredients in, it started fizzing up around half the bottle. The fizzing went down and the bicarb soda and the vinegar combined but some of the vinegar did not combined. After we started swishing it around the bicarb soda, started becoming like goo.After a while the liquid went up and started floating on the top. The bicarb soda was sitting on the bottom and doing nothing.
Kate’s observation- After we poured all the ingredients in the bottle it fizzed up to about half way inside the bottle just like regular vinegar and bicarb soda would. After all the bubbles that settled the vinegar, oil and food dye floated to the top of all the bicarb soda and didn’t combined after all, I feel the oil did nothing the to experiment.
Discussion: This happens because the oils viscosity is too high to mix with the vinegar’s low viscosity.
Conclusion: Our experiment wasn’t successful because when we mixed the oil it just sat on the top of the vinegar and the bicarb soda. We learnt that oil does not combined with vinegar and bicarb soda. Yes, the results were as we predicted because we thought the oil would sit on the top and do nothing. We could change the experiment by instead of adding oil add water instead because then the water will combined with the vinegar and bicarb soda. A follow up experiment we could do vinegar and bicarb soda, looking at its properties.