I have just been doing this in science! The simple way is of course to just pick out the shells ;) but the real sciencey way would be to use a sieve. This will allow the sand to go through, but leave the shells in the sieve!
physicial energy
sifting
yes
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Even the Sand Is Made of Seashells was created in 2006.
Separation by fltering.
Water Rocks Sand Minerals Salt Seashells
Physical change
it will get on the iron if you try to separate sand will be on the iron
I would sort them by a strainer
Try to use a sieve.
seashells, rocks, sand, water
Even the Sand Is Made of Seashells was created in 2006.
Seashells
Seashells, sand, water,
Because you can separate seashells and marbles with your hands and you can't with copper sulfate
Separation by fltering.
we can separate sand by decanting
Water, reefs, sand, seashells
Water Rocks Sand Minerals Salt Seashells
Physical change