First of all how do we know that 'white light' contains all others colours and how do we assume that the filter accepts to be penetrated by a specific colour of that white light?
These all are accepted assumptions.
We can split white light into its component colours by a prism or diffraction grating.
We can see that filters allow some light through and not others by splitting the light into its component wavelengths and trying to pass each wavelength through, measuring the light with and without the filter.
Yes the grass falls because it has a vertical SURFACE that is being hit by the invisible horizontal layers of AIR
Yet when struck by light, there is no noticeable movement.
I just believe that water stays water ,it does not turn into solid or gas.
Liquid water is water.
Solid water is water.
Gaseous water is water.
All are composed of H2O molecules.
You can do the same with nitrogen and oxygen, the main components of air.
You can liquify them and solidify them.
I have already given the example of degasses water in a balloon with no air being frozen in a freezer.
It is quite clear air isn't required.
When you boil it does not turn into gas,but the heat makes the air rise and this air now carries tiny droplets of water that we can't see,but when we put a surface on top again they easily make a union with the other tiny droplets and bigger drops form.
When you boil it, it does turn into a gas. When you place a COOL surface on top, the water vapour cools down and condenses.
If what you said was the case, there would be no reason for that magic 100 C, which only varies with pressure.
There would be no reason for it to change when you put in a bunch of sugar to make toffee.
There would be no reason for it to change when you use ethanol instead.
Instead, it would be you heat it up and once there is enough airflow, it starts to "boil".
If what you said was the case you would easily be able to keep heating water above 100 C, but you can't. Instead as it hits 100 C it begins to change phase and go to a gas, and this continues until all the water is gone.
There are many ways to see it isn't the air.
One is with an appropriately shaped vessel.
One possible shape is a tall necked vessel to prevent air flowing over the surface.
Another would be an inverted U-tube, so there is no reason for the low density hot air to leave the container as it would need to go down.
If you have appropriate safety measures in place, you can also remove the air from the equation.
You can a vessel, and fill it with water, then seal it, and measure the pressure.
There will be negligible change until it hits 100 C at which point it would normally change phase and start boiling.
But as it does this to some extent, the pressure increases dramatically, increasing the boiling point.
Alternatively, you could find a flexible, heat resistance, and air and water tight material like kapton, and form a large pouch with it, which is flattened out with only a small amount of water inside. Then heat it up and watch the water turn into gas, without any air needed.
Another option, requiring more equipment, is to have a sealed set up and lower the pressure inside by removing the air.
If what you claim is true, this should make it much harder to take the water away, so it should require a lot more heat to get the air flowing to take it away in small droplets.
Instead we find it takes a lower temperature to boil the water.
Τhe thing is that if we were to believe in transformation of matter ,we would believe in metaphysics.
No, we would believe in quite basic physics/chemistry.
The key parts are thermal energy and intermolecular forces.
All substances have some amount of intermolecular forces trying to hold it together.
At very cold temperatures, they cannot overcome these and are held together as a rigid solid.
But as you heat it up, they start moving around, with more and more energy.
Eventually they gain enough energy such that they can overcome the intermolecular forces between it and one of its neighbours, allowing it to move away from that neighbour and get a new one.
This is now a liquid, where the molecules can move around, exchanging neighbours, but only by staying close to other molecules.
But eventually, they gain enough energy to overcome the forces holding them together and they break free, flying around as discrete molecules. This is where they are a gas.
Even below this temperature, some of the fast moving molecules (they don't all have the exact same speed, instead they have a distribution where the average kinetic energy corresponds to the temperature) will have enough energy to overcome the forces holding it together and turn into a gas. This is why water evaporates below its boiling point.