Answer: Color, shape, size, texture, volume, and mass
Step-by-step explanation:
Color, shape, texture, volume, mass, and size are the most important things when it comes to the observation of anything and also substances.
When we are looking at some substance and observing it at first we can see mass, size, and color. After that, we can look better to see the texture of it which is also important.
These things are considering everything that person can see with their eyes.