Answer:
1: The coach was admonishing them, bringing up each of their deficiencies.
2: The birds were iridescent, yet they had a strong dissonance.
3: The little boy was malicious and threw the snowball at the lady, who became transfixed.
I'm not sure how good these are, but I hope it helps some. These are just examples.
Observation is a very important part of science. It lets us see the results of an experiment, even if they are not the results we expect. It lets us see unexpected things around us that might stimulate our curiosity, leading to new experiments. Even more important than observation is accurate observation. Often, our eyes and our brains play tricks on us, letting us see what we expect to see, instead of what is actually there.