JOEL - Our Sunday services are centered around Jesus Christ and His gospel. Sunday services are normally split into three separated periods of time, which altogether lasts about 3 hours. Congregations in other parts of the world may differ slightly depending on their circumstances.
One period of the service is called Sacrament meeting under the direction of the Bishop of the congregation or one of his assistants. An opening song is sung by the congregation followed by an opening prayer by one of the members. This is followed by the sacrament ordinance(Eucharist), where bread and water are blessed and passed out to all members and taken as a rememberance of Christ and His sacrifice for our sins. This is followed by two or three sermons on some aspect of Christ's gospel, by individuals selected from the congregation or local church leaders. Then there is a closing hymn sung and closing prayer by another member.
A second period of time is called Sunday School, where members split into various classes (according to age for the youth and small children), where lessons are given on the scriptures. Each year one of the four cannons of scriptures are studied in depth(New Testament, Old Testament, Book of Mormon, and Doctrine and Covenants).
The third period of time is for different organizations in the congregation to meet and discuss other aspects of the gospel and service. The teenboys and adult men attend Priesthood meeting, the women attend Relief Society, the teenage girls attend Yong Women's organization, and the children attend Primary.

Some doctrines that separate the LDS Church from the other Christian organizations are the following:

God - LDS do not believe in the Tritiny concept of the godhead. We believe God the Father, Jesus Christ, and the Holy Ghost are three separate and distinct personages; the Father and Christ having physical resurrected glorified bodies of flesh and bone and spirit and the Holy Ghost a personage of spirit.

Priesthood - Priesthood authority is required to perform certain saving ordinances, including baptism by immersion, admisistration of the Sacrament(Eucharist), bestoal of the Holy Ghost, marriage, Temple ordinances and leadership positions in the Church. This priesthood was given to the Prophet Joseph Smith, by angels from God who received it from Christ, and Smith in turn passed it on to other male members of the Church. Each priesthood holder of the Church can trace his line of priesthood authority to Jesus Christ.

Atonement - LDS do not believe in the original sin, that all men are born carrying the burdon of Adam's transgression. LDS believe that man will be punished for his own unrepented sins. Christ's atonement gives all the opportunity to repent and be saved in God's kingdom through faith, repentence, baptism by immersion, and gospel living.

Scriptures - Lds believe in and teach from the Bible, but also have the other scriptures that I mentioned above.

Prophets - LDS don't believe that the heavens are closed in terms of communication from God. We have living prophets that are directly inspired by God, receiving revelation from Him in regards to how we are to live.

Church organization - LDS believe that through Joseph Smith, our first prophet in the latter-days, was called by God to restore the original Church of Christ as it existed in the early days of Christianity, and that our Church has the same authority and priesthood offices as in the original.

Salvation and Temple work - LDS do not believe that they are "saved" at any particular moment during life. Being saved is something that comes after life, death, and resurrection.
LDS do not believe that there is only heaven and hell. There are several degrees of glory in heaven after the resurrection that people are saved in according to how they lived their lives on earth and the grace of God. Those who have died without hearing the gospel will have the opportunity as spirits in the Spirit World after death to hear and accept the gospel. We perform the saving ordinances(baptism, etc.) for these people by proxy in our Temples.
Husbands and wives can be married(sealed) in our temples for eternity, rather than just "until death do you part".

Missionary work - The LDS Church is very active in the work of bringing new souls into the gospel.

There are many other differences, but these are some of the main ones.

The most common misperception that people have about the Church is believing that the Mormon Church is not Christian. The Mormon Church does not follow the traditional deffinition of the word Christian, which bases its beliefs about God according to the Athanasian or Nicene Creeds; but we do nevertheless claim to be Christian. We believe in Christ. We worship Christ. We take upon ourselves in solemn covenant His holy name. The Church to which we belong carries His name. He is our Lord, our Savior, our Redeemer through whom came the great Atonement with salvation and eternal life.

The Mormon Church is not a cult; at least we don't consider ourselves to be a cult, although many others accuse us of such.

The Mormons no longer practice the principle of Polygamy. At one time it was a very important and God-sanctioned practice in the beginning days of the Church and is still considered a doctrine, but not one that we practice at this time.
"Mormon fundamentalists" who still practice polygamy are not members of The Church of Jesus Christ of Latter-day Saints.

The Mormon Church is not a racist Church. Membership in the Church has never been denied to any race of people as has been the case for other Christian denominations. For a time blacks were not allow to be ordained to the priesthood in the LDS Church, but this restriction was commanded by God through revelation and was discontinued by Him in 1978.