May 23rd
Today in Science we looked at "Splitting Inks." We each drew a snake with felt pens. We used lots of different colours. We then dipped our pictures in water and watched the ink spread. Different inks travel at different speeds making patterns. This is called chromatography.
We learned that our banknotes use special inks that are hard to copy. If the police suspect someone has made their own banknotes they can use a chromatography test to see what ink has been used.
2 comments:
Very interesting Room 6. Did you also know the police can use it to identify things like pens found at crime scenes.
Wow! I learnt something new today from reading about your ink experiment. Great work Room 6. I look forward to learning more interesting things from your experiements. Diane Fry
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