1. Lemons float and limes sink.
2. And a can of Coke will sink, while a can of Diet Coke will float.
3. Oranges aren't always orange; sometimes they're green.
4. Scientists have made diamonds out of peanut butter.
A German TV station asked scientist Dan Frost if he and his team could use extreme pressure to turn carbon-rich peanut butter into a diamond. It worked, although the process also released a lot of hydrogen that then destroyed the experiment (whoops).
5. Carrots were originally yellow or purple.
6. Almonds aren't nuts; they're actually tree seeds.
But only raw, unroasted almonds can turn into trees. Almonds you buy from the store probably can't grow into trees.