Science Experiments

Question: Science Experiment: Which plant will grow faster, the one watered with filtered water or tap water?

Hi, I’m doing this science experiment and I just want to see your opinions.

I planted seeds of Alyssum into two different pots.
One I watered with only filtered water, and the other one I only watered with tap water.
About 10 days after I planted the seeds, I observed that the tap water had one sprout, and the drinking water had two sprouts. Unfortunately, I don’t know how many seeds I planted in each. So, as of today, the experiments suggests to me that the plant with drinking water grows faster.

Today I checked the pots, and both had two sprouts. The tap water had just sprouted another one.

So, I would like to know with the plant Alyssum, would filter water make it grow better/ faster or will tap water?
thanks!

btw, both plants are in the same spot. So in addition to getting the same amount of water, they get the same amount of sunlight also. The soil I used are also relatively similar.

Answer: When one does an experiment especially comparative testing, every thing should be equal in all aspect to come up with an accurate result. Assumption, equal size of seed, equal amount of soil, equal amount of water, sunlight. Equal distance on how deep the seed was placed underneath the soil.
These factors plays a crucial role on the results plus how fast the germination process of seeds. The tap water is best as it contain minerals which is absent from the filtered water. Filtered water has undergone filtration and has remove some of the natural elements necessary for Seed Germination. Filtered water is good for human consumption but tap water is better for plant consumption. Humans and plant differ in water quality as plants and humans process water differently.

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