This week I am still learning about being a detective in Science. I learned how you can tell which pen was used to write a note. I took 3 different markers and wrote on 3 different pieces of paper.
Then I dipped the paper into the water just a little bit so the water could soak up the paper.
This is what the different pens looked like when I was done. My sister and brother tried to be tricky and went into the other room to write on a piece of paper and see if I could figure out which pen they used. I figured it out every time. Look at all the different colors that are in each black pen.
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