Capillary Action

Capillary Action

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Storyboard Text

  • Hey, what are you thinking about?
  • This flower was white before, how did it turn red?
  • Capillary action, of course! It's the upward movement of water or another liquid despite gravity!
  • Ok, let's break it down.
  • What???
  • You put your flower in red water. The water traveled up the stem of the plant.
  • Yes! Exactly. That upward movement of the water is capillary action.
  • Where else can we find capillary action?
  • So my white flower turned red?
  • You're experiencing capillary action when you drink from a straw...
  • And even when you're using a fountain pen! The ink is drawn to the nib by capillary action.
  • When you're mopping up a spill with a napkin...
  • It's even in your body! Capillary refill is when blood flows back into your finger, after you remove the pressure you've been applying to it.
  • Wow! That's amazing!
  • Thanks for teaching me so much!
  • No problem!
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