x

Meet New Friends!

Recommended friends are based on your interests. Make sure they are up to date.

Friends
Kw-logo-smaller

The Science of Scabs

every kid's life

Scabs - Nature's Band-Aid

Scabs are nature's Band-Aid. They start to form less than 10 seconds after you cut yourself. Chemical proteins react with special blood cells called platelets, which cause the blood to get sticky and clump together. This forms a clot that plugs up the cut to stop the bleeding. Once you've clotted, 16 different chemicals work together to dry out the clot and form a scab. The scab keeps out germs while the cells underneath make new skin.

Scabs - White Blood Cells Chow-Down

White blood cells, which are the cells in charge of fighting off disease, arrive on the scene and chow down on any germs that sneak past the scab, as well as some of your dead blood and skin cells. Yum.

Scabs - That Icky Yellow Stuff

Piles of living and dead germs and cells form pus, which cause some swelling and puffiness around your wound.

Scabs - Don't Pick A Scab!

I know your parents always tell ya this, but they're not just grossed-out by the bloody mess you'll make. If ya pick a scab, you're messing with all the hard work your body is doing to fix itself. If you leave it alone to do its thing, a cool new kind of cell, called a macrophage arrives. They eat all the pus, dead white cells and other debris. Within a week or two, the scab should fall off all by itself.

Scabs - Did U Know?
  • Watch out! Vampire bats have chemicals in their spit that prevent scabs from forming. This makes it easier for them to snack on their victim's blood. So don't get spit on by a vampire bat if you've got an open wound.
  • If you dream about scabs, it could mean that money is coming your way.
  • For a cool scab recipe click here.
  • Related stories:
  • Bone Up on Boogers
  • How Blood Carries Oxygen
  • The Ins and Outs of Burping
  • More Cool Science...
  • 8 Comments

    Related Stories

    F1138299959156

    What's the Grossest Body Function?

    • Poop.
    • Scabs.
    • Pee.
    • Puke.

    Random In The Forums

    CrazyElly
    CrazyElly posted in Say Anything:
    Do you ever get the feeling that your mum knows all your secrets when she looks at you
    reply 38 minutes
    Thorvald
    Hi Kristi, It sounds like the rules to your assignment are pretty flexible. Which is great when you need some creative wiggle room! My first suggestion, take something you're interested in, like a hobby or a future aspiration, (like you want to win a gold medal in the Olympics, or visit a distant country,) and try to imagine a story with that as the basis. So you can write about yourself and what it might be like, or you can come up with a fictional character. It doesn't have to be realistic! :) Another suggestion, think about a memory or an experience that really stands out in your mind. It can be a happy memory, or not so much. Whatever inspires you, write about that. You can stick true to the experience, or you can take some creative liberties and change it to make the story more interesting. Remember, you can always take inspiration from a short story someone else has written, just don't plagiarize! I hope this helps! I'd love to read whatever you come up with. :)
    reply about 3 hours
    naruto200
    naruto200 posted in Debating:
    still team ninja
    reply about 6 hours
    callme_missright
    Laptop
    reply about 10 hours
    bffeaea
    bffeaea posted in Debating:
    If you are in team pirate I have a pirate role play that is currently open. :) ;)
    reply about 10 hours