Briefly describe (in chronological order) what happens at Sunday mass in Catholic Church? (Related to homework.) 

People stand while the Priest enters with 2 alter boys (or girls)

Opening song

Someone reads from the scripture

Another song......

Priest speaks

Another song......

Sign of peace (shake hands with those around you)

Offering collection ($)

Communion

Final blessing and dismissal

INTRODUCTORY RITES

  Entrance
Procession; Greeting; Penitential Rite (usually);  Kyrie; Gloria; Opening Prayer

LITURGY OF THE WORD

  First
reading; Responsorial Psalm; Second reading; Alleluia or Gospel Acclimation;

  Gospel;
Homily; Profession of Faith;

  General
Intercessions /  Prayer of the Faithful

LITURGY OF THE EUCHARIST

  Presentation
of the Gifts / Preparation of the Altar

  Prayer over
the gifts

  Eucharistic
Prayer

COMMUNION RITE

  Lord’s
Prayer

  Sign of Peace 

  Breaking
of the Bread

  Communion

  Communion
Song

  Period
of Silence or Song of Praise

  Prayer
after Communion

  (Announcements,
etc.)

CONCLUDING RITE

  Greeting

  Blessing

  Dismissal

  (Recessional
and Closing Song)

http://catholic-resources.org/ChurchDocs/Mass.htm

I might suggest that you attend a Catholic mass.  That's the best way to research this.

The church choir sings then the pastor says a good sermon and then the hat is past around and the pastor says he needs a new car so everybody must give more. Then the choir and everyone leaves

  kneel...stand up...sit
kneel...stand up...sit
kneel...stand up...sit
kneel...stand up...sit
give money
kneel...stand up...sit
kneel...stand up...sit