Science Photo of the Day #388
You probably see this every day, but most people don't notice it. What is it?
Excellent! These are earthworm castings. Earthworms basically eat their way through the soil. In the process, they digest and absorb some of the nutrients, but they also break down parts of the soil, making it richer in nitrogen and phosphates. This also mixes the soil, aerate the soil, and makes it easier for rain to penetrate the soil. All in all, they have quite an impact on the soil.
worm
so they are really helpful.
Crabs!
Crabs dig holes! They leave little balls of sand/dirt as they dig!
Ideas.
Kelly: I think it's worm stool.
David: I think it's rabit stool.
Jazlyn: I think it's some sort of stool.
new
I think that it's some kind of asphalt, with leaves and some kind of weird slug on it.
Christopher David Wilson.
(Age 9:)
Guesses from 7th grade period 2
Michaela thinks it is plants growing in asphalt.
Thomas thinks it is gum.
Fisher thinks it is some kind of mold.
Jeremey thinks it is mold or asphalt.
Robert wonders if it is dirt.
Liam says it's definitely ground beef with mushroom stuff.
Desmond thinks it is tar.
Lauren thinks it could be seeds or some other reproductive thing.
Is it worm poop? Katherine,
Is it worm poop?
Katherine, age 5
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