Sacraments are efficacious signs of God's constant love for His children. What does "sacraments are efficacious signs" mean?

Baptism is a sacrament of faith because through it, the gift of faith is conferred on the candidate. Why is Baptism called "the sacrament of faith"?

The Holy Eucharist is the sacrament of the real presence of Christ. How does the Eucharist make real the presence of Jesus Christ?

 The sacraments are a symbol of the reality of God and a channel of His grace since they are presented as an outward sign and yet of an inward grace obtained through Jesus Christ hence the conclusion that sacraments are efficacious sign of God's grace in a way that is outwardly observable to all present. They are this irresistible grace that flows to us during the Holy sacraments.

Step-by-step explanation

What does "sacraments are efficacious signs" mean?

This is according to the teachings of the Roman Catholic which means that sacraments are a sign of Gods irresistible grace instituted by Christ and entrusted to the church through which divine life is channeled to us. It is in the manner that each sacrament is celebrated in visible ways that signify and make present this graces. Therefore, the sacraments are a symbol of the reality of God and a channel of His grace since they are presented as an outward sign and yet of an inward grace obtained through Jesus Christ hence the conclusion that sacraments are efficacious sign of God's grace in a way that is outwardly observable to all present. They are this irresistible grace that flows to us during the Holy sacraments (Peters, 2020).

Why Baptism is called "the sacrament of faith"?

It is only through the faith of the church that each of the faithful can believe. This faith that is needed for Baptism is not a kind of a mature faith perfect faith but rather the faith that is considered the faith of beginning since it lays a foundation for your journey as a believer. The sacrament of Baptism is therefore then a sacrament of faith because the person receiving faith has a requirement of having an active faith in God as revealed by Jesus Christ and they must have the intention to receive the graces and benefits encompassed in the promises of that sacrament. It is this intention then that makes it a sacrament of faith. 

How does the Eucharist make real the presence of Jesus Christ?

 "I am the living bread that came down from heaven; whoever eats this bread will live forever; and the bread that I will give is my flesh for the life of the world. . . . For my flesh is true food, and my blood is true drink" (John 6:51-55). It is in the remembrance of this words in the celebration of the Eucharist that bread and wine become the blood and body of Jesus Christ through the power of the Holy Spirit and of the  presence of physically the priest. Here The Christ is considered truly present in body, blood, soul and divinity which is meant by the presence of Christ during the Eucharist who is the Christ that rose from the dead after dying from our sins. It is He who is glorified in the Eucharist (Cockayne, Efird, Haynes, Molto, Tamburro, Warman & Ludwigs, 2017).