air
No because everything is matter and some things u cant see
no. all matter cant be seen. like air is a matter but we cant see it.
yes
Gravity: because you cant see or feel it. light: light is given off and we see it. these can't be put in a jar.
Ghost
It is real i mean you can see it cant you, anything you see is matter and matter is real.
No, because matter is something that takes up spaces, and matter is something that you cant see.
you cant see atoms
The human eye is not designed to see microscopic things.
It dont matter they black you cant see them any way.
that will be a Microscope
To see far away things that our eyes cant see alone