Tuesday, January 17 If we haven't dug a hole to the center of the earth, how do we know it has layers?
Sorting by Particle Size and Density in Lakes, Rivers, and Beaches
Big Stuff Falls First When a mudslide dumps stuff into a lake or the ocean, things settle to the bottom according to particle size and density. The biggest rocks drop to the bottom first.
This is a good explanation of what happens… You can also link directly to YouTube by clicking here: https://www.youtube.com/watch?v=tbgf9Kbqc2I
If two rocks are the same size, the one that is the densest will end up on the bottom layer.