'This "castle"-making material is loosely defined as rock or mineral particles between 1/400 & 1/12 inch'
sand
SA: This castle-making material is loosely defined as rock or mineral particles between 1/400 & 1/12 inch
This "castle"-making material is loosely defined as rock or mineral particles between 1/400 & 1/12 inch
This "castle"-making material is loosely defined as rock or mineral particles between 1/400 & 1/12 inch
"SA"
sand
"SA"