"Chemistry?" The word was foreign to her. Though, whether she knew it or not she had some practical skills in the area thanks to proficiency in baking.

Rapunzel freed up a hand and took the device. Holding it towards some of the pond scum. She pressed the red button and watched in awe as the screen reacted, scrolling information on it. She never ceased to be amazed at the new machines that were introduced to her.

"Hm...that's not it," she said when the correct number didn't appear. "But that's really amazing! How does it know?"