Science week

A while ago,we learned about mixing colours and ink.We learned about chromatography.We did an experiment to show chromatography.Here is how we did our experiment.First we got a bit of kitchen roll or filter paper and put a few markers on the bottom of the paper.Then we rolled the top of the paper up in a pencil and placed it on top of a plastic cup with water inside the cup.After a while the water begins to drag the markers up the paper.This is chromatography.Here are a few pictures of the experiment: