Thinking ink: The scoop on this colorful stuff!
Brains On! Science podcast for kids
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What Is Your Guess?
Pens. Full of ink, but not one stink. Perfect pens promote pretty positive bond rings. There's also a kind of naturally occurring ink and naturally many of our listeners are curious about it. And now something I bet you'll have an inkling about It's the... Here it is. What do you think it might be? We're going to give you another chance to hear it and take another guess later in the show.
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