Embedded Files
VIDEO
VIDEO
Math and Science fair Video (Full & Finished).mp4PH Experiment
Materials used in experiment
Litmus Paper
3 water samples
Stove
Fridge
Beaker Glass
Thermometer
Since we had 2 different experiments the procedures of each one were different
Procedure 1:
Grab 3 water samples from different sources (e.g Pond, Pool, Tap Water)
Measure PH levels of each sample
Procedure 2:
Grab 3 water samples from the same source
Put the samples into 3 separate beaker glass
Put one sample in the fridge, heat one up over a stove, and leave the last alone
Measure the temperature of each sample
Measure the PH levels of each sample with litmus paper
Results
Results
We made a table and graph for each respective experiment to show our results. The first graph shows the difference in PH levels of water from different sources. While the second graph shows the correlation of the 3 samples that were at different temperatures.
From the graph we can see that the correlation is positive, this means that the temperature does indeed have an effect on the PH levels of water. This matches what we saw during the experiment where the higher the temperature the higher the Ph level would be.
Bacterial content Experiment
Materials used in experiment
Plastic petri dish
2 water samples
Agar Nutrient
water (fosset/mineral)
Stove
Beaker Glass
Thermometer
Procedure:
Obtain 2 water samples from different sources
separate each of them into 2 samples (one to heat, and one to keep at room temperature)
Take your agar nutrient, and mix with water. Use 2g of agar for every 100ml of water (recommended to have 100-150ml)
Once stirred well, heat the agar solution over a stove to a boiling point. (feel free to heat up the 2 water samples as well to a desired temperature)
Pour the heated agar solution into the plastic petri dishes and wait until it dries into a jelly-ish consistency
Add 5 droplets of the water samples, with each plastic petri dish containing a different sample
Seal the petri dishes
Wait 4-14 days to see the bacterial growth inside
Colonies.xlsxResults
Results
Over the course of 4 days, the bacteria grew to have a decent amount of colonies, with the cleanest being the heated pond water, containing more or less 49 colonies of varying sizes.
Back to Home
Page updated
Google Sites
Report abuse