Dying Eggs (A Science Experiment)

During a bike ride on our local elementary school campus, Sylvie asked me what the words on the door "Science Lab" said and then asked me what science was. I gave my best almost-3-year-old explanation, something like "you have a question or an idea so you do a project to see if your idea is right." To which Sylvie said, "YES. I want to do THAT."

Dying eggs seemed like a seasonal and festive science experiment, so we decided to go with that. Based on this BHG article, I figured any natural extract plus vinegar would dye eggs. Sylvie and I gathered tomato juice, chai tea, spinach, carrots and orange peels. I boiled each to produce colored water and then we added vinegar. Carrots produced a shade just between orange peel and spinach and we were running out of jars, so carrot water didn't make the cut.

Tomato looked promising, but didn't stick at all. Orange peel also produced pretty much egg-colored eggs. But the tea and spinach eggs were, as Sylvie says, "kinda pretty."
Sylvie currently loves taking pictures, which results in quite a lot of pictures of her fingertips. But she got a pretty cool close-up of the eggs:
If we were to experiment with egg dyes again I would try some things with more pigment like red cabbage, blueberries, cranberries or grape juice. Or Kool-Aid. I love that lime green.