 Do you know that the blue ink in your pen is actually made up of many other colors? It is actually a mixture. Similarly, this blue ink fountain pen blue ink is actually made up of many other types of colors. But is there a way to see all those different colors that make up the ink that is in your pen or the ink that is in a sketch pen or in a white board marker? Well, turns out there is and that method is called chromatography. And to carry out this method, all we need is a plate with some water in it. You need a couple of chalks and you need a sketch pen. You can take a whiteboard marker. You can also have, you can also take fountain pen blue ink or you can simply use the pen in your pencil box. All right. So to carry out this activity, you need to make a mark on the chalk with that sketch pen or ink just like this. Make sure the marking is a little above from the base and then keep, keep this chalk. Make sure it is standing straight. Keep it just like this and do the same for all the other inks. For the fountain pen ink, I'll use a dropper and gently place two, three drops of ink at this point. Okay. Now the chalk will start absorbing the water and we will see all the different colors that make up the ink of this green sketch pen, this blue ink. So we will have to wait for some time. It'll take around four to five minutes. So as the chalk soaks up all the water, we see, we see different colors moving different distances. Right. That is because some colors are more soluble in water. So they, so they move to a greater distance along the chalk and some aren't that soluble. So they move only short distances. Okay. Check this out. So turns out the ink in the dark green sketch pen is made up of these two colors yellow and blue, light blue. This fountain pen dark blue ink is made up of these two colors, light blue and purple. But nothing's happening to this chalk, right? Well, that is because the ink in this whiteboard marker is not soluble in water. The ink has to be water soluble. Only then it will move along with the water that is being absorbed by the chalk from below. You can pick any colored sketch pen, any pen that is in your pencil box. And all you need is just a piece of chalk and some water. And with this activity, you can find out all the different colors that your ink is mid-puff. That's pretty cool.