tom swift among the diamond makers

 For science today the last page of my science book still on this test. Did you know that there is the sub called Alvin I don't know why but it's like the second deepest diving sub in the world and it's cool because it holds three passengers 2 scientists and one pilot it's kind of cramped down there but it's worth it to see all that cool stuff Alvin has a claw also one of that claw that you can grab rocks and stuff with I thin it also has something like a vacuum to suck in little tiny creatures you can look at them through a microscope?