Does Microwaved Water Kill Plants? Part Three

If you're reading this post, this photo is from Day 6

 This is part three of my experiment. Does microwaved water kill plants? I began with three jars of water, and only I know the identity of the jars. One contains water hot from the tap, one hot from the microwave (boiled), and one hot from the stove (tried to get to boiling)
Here is a link to part one and part two of my experiment.

After seven days of watering, I still have about half my water left

Day seven and almost all the seeds sprouted. There was one dud in each water group.

Day 8 Group A...I was beginning to feel sorry for these sunflowers (left side)

 

Day 8 Group B...these sunflowers seemed to do a little better getting through the soil

Day 8 Group C...again, the sunflowers struggling to break through, the spinach is having no trouble!

On Day 8, I "helped" the struggling sunflowers through their dirt clods in all three groups.
If you look closely, you can see a dud in
Group A spinach, Group B spinach, and Group C sunflower

So, after one week, the plants are thriving. I am not noticing a large difference in growth between any of the groups, so at this point, I am unsure there is a true difference.
My next step will be to put these plants in more soil, as they are growing too tall to be supported by the egg carton. Some of the roots have already burst through the carton, so I will simply cut apart the carton and plant them already contained.