Discussion:
In sample, B there was 16% salt, which is unnaturally higher than the global average of 3.5%. When I asked about the reason of this, I found that the water was artificially created. This was also the case of Sample, A which had 9% of salt. That is about 3x the amount of salt from the global average. All though this is not an experiment with data, that we can apply to real life, it was still great fun to do the experiment and the lessons I learnt will stick with me for a long time.
Evaluation:
I think our results could be more accurate if we found a more efficient way of keeping our salt contained. We used a watch glass to stop the salt from spitting everywhere but it just stuck to it and made it hard to scrape off. I think that …show more content…
We separated the salt from the water by heating the salt solution to boiling point, which evaporated the water and left the salt I the evaporating dish. We then collected the salt and weighed it. We found that in sample B there was 6.4 grams of salt from 40 grams of water resulting in a salt content percentage of %16. In addition, in sample A there was 3.6 grams of salt from 40 grams of water resulting in a salt content percentage of %9. After looking at this, we compared it to the global average of 3.5% we were forced to ask the question if this was actually seawater. We asked the teacher and they told us that it was artificially created. I then looked at what we could have done to improve and further explore the topic of salt separation. I thought of better ways to contain the salt such as cleaning surfaces to make it easier to brush salt off things without getting dirt in it. I also thought that we could try using distillation to keep the water as well as the salt to further our experiment. After this experiment, I have learned skills of separation. I know the ways of separating different mixtures and impure substances. I am pleased of my progress throughout this term and especially this
In sample, B there was 16% salt, which is unnaturally higher than the global average of 3.5%. When I asked about the reason of this, I found that the water was artificially created. This was also the case of Sample, A which had 9% of salt. That is about 3x the amount of salt from the global average. All though this is not an experiment with data, that we can apply to real life, it was still great fun to do the experiment and the lessons I learnt will stick with me for a long time.
Evaluation:
I think our results could be more accurate if we found a more efficient way of keeping our salt contained. We used a watch glass to stop the salt from spitting everywhere but it just stuck to it and made it hard to scrape off. I think that …show more content…
We separated the salt from the water by heating the salt solution to boiling point, which evaporated the water and left the salt I the evaporating dish. We then collected the salt and weighed it. We found that in sample B there was 6.4 grams of salt from 40 grams of water resulting in a salt content percentage of %16. In addition, in sample A there was 3.6 grams of salt from 40 grams of water resulting in a salt content percentage of %9. After looking at this, we compared it to the global average of 3.5% we were forced to ask the question if this was actually seawater. We asked the teacher and they told us that it was artificially created. I then looked at what we could have done to improve and further explore the topic of salt separation. I thought of better ways to contain the salt such as cleaning surfaces to make it easier to brush salt off things without getting dirt in it. I also thought that we could try using distillation to keep the water as well as the salt to further our experiment. After this experiment, I have learned skills of separation. I know the ways of separating different mixtures and impure substances. I am pleased of my progress throughout this term and especially this