Knots Needed for Advancement

As a scout follows the advancement trail, he needs to learn the following knots:
Scout Rank Requirements:
6. Demonstrate tying the square knot (a joining knot).
Tenderfoot Rank Requirements:
4a. Demonstrate how to whip and fuse the ends of a rope.
. Demonstrate that you know how to tie the following knots and tell what their uses are: two half hitches and the taut-line hitch.
Second Class Rank Requirements: No new knots are needed
First Class Rank Requirements:
7b.Demonstrate tying the timber hitch and clove hitch ...
8a.Demonstrate tying the bowline knot and describe several ways it can be used.
Square Knot 

Two Half Hitches