Validity
As we all know, Experiments have experimental errors. Our experiment had many experimental errors. We had 3 types of potatoes, raw, boiled, and frozen. All of the potatoes were brought to us from different conditions. Which made it kind of weird. But we tired our best. We hope we did a good job. So anyway after we got the potatoes, we had everything we needed so we got started.
Experimental Errors in General
Experimental Errors in general are supposed to be avoided but when we are experimenting in science class it is just impossible to avoid them. Sometimes they just totally mess up your experiment sometimes they are just tiny mistakes that don't really matter. We had some experimental errors in our experiment. One of the experimental error was a huge one that changed basically everything. But even though we made such a huge error we moved and tried to do the best we can in our experiment.
Errors in written procedure
We first wrote our procedure out one way and then ended up changing a ton of it right before the experiment. So this was one of the errors that changed our whole procedure. So we changed our variable to the amount of hydrogen peroxide we use. We had 4 pieces of potato. So even though This one big experimental error changed everything for us we still got over it and got used to our new experiment very quickly and got a hang of it very quickly too.
Errors in the Experiment
Our biggest experimental error probably was the size of the potato. The raw was the easiest to cut. The boiled potato was really soft and squishy so that was a little hard to cut. The frozen was the hardest to cut. We had to ask our teacher to cut it for us. None of the potatoes were the same size but they were close to being the same size. Our timing system was also a little off. We sometimes started 1 second to early or late. So this was another experimental error. Even after so many experimental errors we still did a pretty good job overall. Next time we will try even more hard.