. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "physical sciences"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "physical sciences"@en . "branch of natural science that studies non-living systems"@en . . . . . . . "physical sciences"@en . .