This activity is made of keys. You can make them out of paper and label them. Then describe each key.

Keys to all Spiritual Blessings
Keys to the Blessings of the Posterity of Abraham
Keys to the Gathering of Israel
Keys to the Sealing Powers
Keys to Church Organization and Government
Keys to the Aaronic Priesthood and to the Gospel of Repentance
Keys to the Dispensation of the Fullness of Time

We need the right keys to be able to start a car and utilize it's power, and so we also need the right keys to unlock the power of the Priesthood. A man who holds the priesthood can use it only when he receives the proper authority or key to do so. Pres. Joseph F. Smith said, "It is necessary that every act performed under this [priesthood] authority shall be done at the proper time and place, in the proper way, and after the proper order. The power of directing these labors constitutes the keys of the priesthood." Gospel Doctrine p. 136. The right to direct the use of the priesthood is called the keys of the priesthood.