Misc: what is the third movement of a symphony called?

Questions

12 July 1960 Echo I, 1st passive ---------- launched ?

12 July 1960 USSR's Sputnik 5 launched with 2 ---------- ?

20 July 1960 1st submerged submarine to fire ---------- missile (George Washington) ?

20 July 1960 USSR recovered 2 dogs; 1st living ---------- to return from space ?

21 July 1960 The country of Katanga forms in ---------- ?