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Got seeds? Now add bleach, acid and sandpaper - Mary Koga


13,060 Questions Answered

TEDEd Animation

Let’s Begin…

For a seed to start growing, its embryo must emerge from its hard coat. In nature the embryo is aided by frost and animal digestion -- but humans can help too. Nicking, filing, and soaking the seed in hot water or acid are all forms of scarification, or ways to speed up germination by breaking down the shell. Mary Koga offers some tips to spur your sprouts (and don't forget the bleach!).

About TED-Ed Animations

TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »

Meet The Creators

  • Educator Mary Koga
  • Director Guilherme Araújo, Iuri Araújo
  • Narrator Michelle Snow

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