Serial Dilutions. Moist the paper towels with set amount of solution. Get and label your petri dishes. Cut two pieces of paper towel and insert one into bottom of petri dish . Add 10 to 15 seeds to each bag using forceps then put 2 nd moistened towel over the seeds .
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Get and label your petri dishes
Cut two pieces of paper towel and insert one into bottom of petri dish
Add 10 to 15 seeds to eachbag using forceps then put 2nd moistened towel over the seeds
- Add # grams of sodium chloride for percent to beaker and add water to 100 mL
4grams NaCl + 100 ml water
Get as many test tubes (minus your control) as you have petri dishes for your experiment
Using a disposable pipette, add solution from stock solution to a petri dish + paper towel– keep track of how much you add because you will need to add the same volume to moisten the other petri dishes
Percentage of population killed by a given dose
Dose (hypothetical units)