Investigating: What is the best PH to have the fastest germination rate for green beans?
Independent variable: The PH of the solution
Dependent variable: Amount of seeds germinated for different temperatures
Control Variable: Volume of the PH solution, same amount of seeds per dish
Hypothesis: The best condition for ph to germinate is when it’s not too acidic and not too alkaline.
Equipment list:
- PH solution 2,4,6,7,10
- Cotton
- Measuring Cylinder
- Green seeds (50)
- 5 dishes
Method:
- Gather all the equipment
- Cut out pieces of cotton and put them in the dish
- Place 50 green seeds in the 5 dishes on top of the cotton so each dish has 10 seeds
- Use a measuring cylinder and measure out 25cm³ of PH 2 solution and pour it in the first dish. Repeat the following step for each dish but only change the PH per dish. Remember to measure 25cm³ of each PH solution before pouring into the dish so that it would be a fair test.
- Once all dishes have been completed, finish it off by putting the lid of the dish back on and leave it at the window for two days.
- Once time is up, check and see if the seeds have been germinated.
