Plant+Monitored+Variable+Growth+Graphs.

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ANALYSIS OF DATA:
====How dependent variable changed: In the first graph the dependent variable (Leaf growth) is shown rising at a pretty steady rate. I think this is because the leaves were just starting to grow, so they were growing fast in the beginning, day by day. However, on days 5-7 the measurement stays the same. I think that I can explain this by either the fact that it didn't get as much light/water in those 2 days (6&7)- or it can be because of my uncertainty. My uncertainty was that I would be off by 0.1cm +/- and since each day the length increases 0.1 of a cm its very possible I was off each of those 2-3 days. This steady rate, however, continues in the beginning of the second graph, where the data shows the leaf length increasing at a steady rate over time for the first 12 days (I checked once every 2 days). However, then the rate decreases a little, and then goes up, and down again. I think that the constant rate is simple to explain. Because the stem was newly grown and the leaves were beginning to grow they were growing faster. However, I think that the drop in length on the 7th check is possibly explained by uncertainties in the measurements.==== ====During this project I thought that my uncertainty for this variable would only be +/- 0.1cm, however, the length reduced 0.3cm. I still think that it's possible that on check #6 (2nd graph!) I measured it off by 0.2, and maybe on check #7 I measured it off by 0.1cm. Something like this, a simple measuring error can explain the changes in the graph.==== ====I think that without making this graph I would not have been able to see the changes of growth towards the end. I mean, if I just looked at my numbers in my notebook I would have overlooked that change, and just thought it steadily increased all the way.==== (That stem was on the verge of dying, and did- so I measured a newly-sprouted one) = =

ANALYSIS OF DATA:
====How the dependent variable changed: For the 2nd two graphs, which are the more important ones, the data shows the stem height increasing quite steadily for the first 7 checks, and then for the next 3. However, then it JUMPS about 2.5 cm one day. I think this can be explained by uncertainties, but also simply because of the weekend. If I left the plant over the weekend and it had a good amount of sun, and it didn't dry out as much it's possible that it grew a lot. It is less likely that it is due to uncertainties because between 12.5 and 14.9 theres a 2.4cm difference, which is quite a bit to be off by- especially on a 30cm ruler. At the end of the 2nd graph the numbers jump around a little. However, I think this is simply due to uncertainties. My plants stems don't go straight, and when they get long they kind of bend, but they're not easy to pull straight. Therefore, when I measure sometimes I don't get out the bended parts it can take off part of the height. Therefore, my uncertainties cannot be labeled the same throughout the assignment, because as the stem gets longer, and bends more, the uncertainty increases because it's harder to measure accurately. Without making the graph and data I would not have been able to anticipate this kind of change in the stem height. I did not know beforehand that the stems would bend, so without having the data I could not clearly have a reason for why the length was going up and down like that.====

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ANALYSIS OF DATA:
====How dependent variables changed: The variable in these graphs is weight in grams. The weight for my plant CONSTANTLY jumped around. One reason I can use to explain this is the un-monitored amount of water. Even though I had an amount set that I would give each 2 days some days I had to give it more, or less depending on how dry the soil got. Also, when I brought my plant in it was already on the verge of death, because it had been in my house, not being taken care of. The increase in weight in the beginning of the first graph can be explained by how I revived the plant and grew 2 or 3 new stems, the sudden drop in weight at the end, therefore, can be explained by the death of the rest of the plant. So, in the beginning of the 2nd graph there is another steady increase for a couple days, which can also be explained (as carried on from the end of the 1st graph) as the growth of the leaves and length of the new stems. If you take a look at the 2nd stem growth graph you can see a correspondence of steady growth in the beginning. However, while the weirdness at the end of the Stem Growth graph can be explained by uncertainties the drop in this one cannot. In this 2nd graph the weight drops dramatically. I think it's because 1/3 of the way through, probably around day 4 is when we had a break from school, and I didn't water my plant for a about 4 days. This didn't mean that the leaves and stems stopped growing, it just meant that the dead stems and leaves which hadn't totally died yet, did. Many of the dead leaves also blew off, and the dead stems lost A LOT of their weight.==== ====The uncertainties of my measurements in this category aren't that large because I was using a specific scale which most likely is not wrong. However, there can be uncertainties to about 0.05g if for example I rounded one of the measurements one day from 310.5 to 311. This can look big on a graph is my Y-Axis' scale is set with numbers close together.====