Any matter that does not produce or reflect photons of light that are between 750-380 nanometers in wavelength.
Or it could be dark matter which we still don't know what exactly is dark matter.
If it is not visible, meaning if you cannot see it, it is invisible. Therefore, anything at all that you cannot see is, in fact invisible. In other words, just because you can't see anything, does not mean that something is not there.
air, oxygen, bacteria. well bacteria isn't invisible but it is very difficult to see as they are very small.
Although many people think they are in solid form or water vapor, clouds are actually liquid water. It's impossible for them to be water vapor, because vapor is invisible. Clouds are not invisible.
Its Because i did POO witch made ot invisible
Supernatural elements in the novel the invisible man by hg wells
Yes It is.
An individual carbon atom is invisible. Large amounts of carbon atoms in samples of elemental carbon such as diamonds or graphite are visible.
The gaseous state of a substance. For example, air is invisible and is shaped by the container or atmosphere.
It is called dark matter. Dark matter is undetectable and invisible.
It is invisible.
Dark matter is invisible. It doesn't interact with light.
matter must have mass and volume.though it may be visible or invisible.
It depends what you mean by simplest. If you mean the smallest forms of matter, they are microscopic not invisible. If you mean basic components of matter such as quarks, atoms, molecules and so on, the answer is again that they are subatomic to microscopic in size and so not able to be seen without aid, yet not invisible. The only things that are truly invisible neither absorb nor scatter light, and therefore we can not see them in the visible light spectrum, like dark matter.
That matter was made of invisible particles
Gas can sometimes be visible with the example of smoke from a cigarette but it is also invisible as in the case of carbon monoxide which could not be seen or smelled.
That matter was made of invisible particles
A good example of visible energy is found in the stars. An example of invisible matter is the "dark matter" that scientists believe surrounds galaxies. So, one answer to the question would be "in and around galaxies".
The right answer is dark matter. Air has particles that can interact eletromagnetically, so it is not invisible. Dark matter, to this day, is known for it's great gravitional attraction and it's capability of not interacting with photons.
Plasma. It makes up more than 99% of visible matter in the universe, and most of the invisible matter.