The young people will make an illustrated dictionary to describe the one, holy, catholic, apostolic Church.
The young people should be able to describe how the Church is one, holy, catholic, and apostolic.
Apostolic, Bible, Catholic, Death/life, Ecumenical, Faith, Gifts of the Holy Spirit, Holy, Infallibility, Justice, Kingdom of God, Loving service, Mystery, Nicene Creed, One, Prayer, Queen of Heaven (Mary), Respect, Sacraments, Teachers (Church), Unity, Virtue, Witness, You (as in ?You are the Church?), Zeal.
Instead of preparing word sheets, you may assign each young person one or more words.