Beth Harris, Raleigh mom and science educator, returns today with a really fun and easy experiment for kids to try - invisible ink! All you need is a piece of paper, milk with some amount of fat in it ...

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You will need half a lemon, water, spoon, bowl, cotton bud, white paper, and a lamp or other light bulb. Need a cool experiment to do at home with household items? What’s cooler than making invisible ...

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