Answer:
I think that middle school teachers are interested in teaching middle schoolers.
The atom absorb the light in the discrete packet in the photons
The answer depends on what substances you were testing, but here are some ideas.
If all of them were white as in the typical experiment, then color is not very useful. If you were allowed to taste them, then a salty taste would be a helpful clue. If the textures were different, some crystals, like salt or sugar and others powdery, like flour or cornstarch, those properties would be helpful. If some dissolved in water,...
<span>d. N and P Because they are from the same group. Elements from the same group have similar properties.</span>
