Seed Germination Lab Report
QUESTIONS
1) The control in this experiment was the bag that contained the radish seeds with tap water. This was an important part to have in the experimental design because I was able to compare this to the other bags that contained coffee, ammonia, and vinegar. With the results that I collected, I was able to gather more observation and data.
2) The independent variable in this experiment was the pH level of the solutions, whereas the dependent variable was number of seeds that each solution was able to germinate. Some control variables were the amount of seeds given for each solution, amount of sunlight, and the amount of days allowed to grow.
3) The effect of pH on seed germination was an obvious pattern. The solution that had a pH closer to seven such as water (7) and coffee (7.5) germinated all five of their seeds. On the other hand, solutions like vinegar (3) and ammonia (11), whose pH were nowhere near seven, grew little or no seeds. This …show more content…
After going over this and the procedure, we then came up with four hypotheses, one for each of the four solutions: coffee, vinegar, ammonia and tap water. Predicting what would happen, two of the four of my hypotheses were that coffee and water would grow, or germinate, seeds, which after the conclusion of the experiment, was accepted. Also, another hypothesis predicted that seeds in vinegar would not germinate, which was also accepted along with the other two. The last hypothesis stated that seeds in ammonia would not germinated, which the experiment proved false and thus, was rejected. This lab is applicable to life, of course. It proved that seeds soaked in solutions with their pH around 7 will help them grow maturely and healthy. After further research, the text read that a pH around 6.5 to 8.2 is the optimal range for life. Because of this lab, the effects of pH are better understood and can be related to
1) The control in this experiment was the bag that contained the radish seeds with tap water. This was an important part to have in the experimental design because I was able to compare this to the other bags that contained coffee, ammonia, and vinegar. With the results that I collected, I was able to gather more observation and data.
2) The independent variable in this experiment was the pH level of the solutions, whereas the dependent variable was number of seeds that each solution was able to germinate. Some control variables were the amount of seeds given for each solution, amount of sunlight, and the amount of days allowed to grow.
3) The effect of pH on seed germination was an obvious pattern. The solution that had a pH closer to seven such as water (7) and coffee (7.5) germinated all five of their seeds. On the other hand, solutions like vinegar (3) and ammonia (11), whose pH were nowhere near seven, grew little or no seeds. This …show more content…
After going over this and the procedure, we then came up with four hypotheses, one for each of the four solutions: coffee, vinegar, ammonia and tap water. Predicting what would happen, two of the four of my hypotheses were that coffee and water would grow, or germinate, seeds, which after the conclusion of the experiment, was accepted. Also, another hypothesis predicted that seeds in vinegar would not germinate, which was also accepted along with the other two. The last hypothesis stated that seeds in ammonia would not germinated, which the experiment proved false and thus, was rejected. This lab is applicable to life, of course. It proved that seeds soaked in solutions with their pH around 7 will help them grow maturely and healthy. After further research, the text read that a pH around 6.5 to 8.2 is the optimal range for life. Because of this lab, the effects of pH are better understood and can be related to