Física o Química (English: "Physics or Chemistry") is a Spanish drama television series produced by Ida y Vuelta Producciones for Antena 3 that was originally broadcast from 4 February 2008 to 13 June 2011.Episodes of Física o Química at the Internet Movie Database Óscar Sinela y Sandra Blázquez fichan por la nueva temporada de 'Física o química'. Formulatv.com. Retrieved 12 January 2012.Miriam Giovanelli se pasa también de "El castigo" a 'Física o química'. Formulatv.com. Retrieved 12 January 2012.Irene Sánchez completa el reparto de la tercera temporada de 'Física o Química'. Formulatv.com. Retrieved 12 January 2012.José Manuel Seda, Gonzalo en 'Yo soy Bea', ficha por la nueva temporada de 'Física o química'. Formulatv.com (4 February 2009). Retrieved 12 January 2012."Física o Química" sufre más bajas para su tercera temporada . Eslatele.com (30 December 2008). Retrieved 12 January 2012.Adrián Rodríguez, actor fijo en la cuarta temporada de 'Física o química'. Formulatv.com. Retrieved 12 January 2012.Un tiro acaba con la vida de Fer. ANTENA3.COM. Retrieved 12 January 2012. In this series they talked about topics such as: drug abuse, suicide, racism, domestic violence, rape, sex, virginity, pregnancy, homosexuality, anorexia nervosa, bulimia nervosa, cheating, forced marriage, same-sex marriage, adoption, cancer, lack of self-confidence, death, homophobia, xenophobia, prostitution, unprotected sex and forbidden love.

A reunion miniseries titled Física o Química: El reencuentro premiered on 27 December 2020 on Atresplayer Premium. A , with 20 episodes, was aired in 2011.

Synopsis A group of novice teachers begin to teach at an institute, the Zurbarán. Students seek their place in the world. Who said that teaching was easy? The series revolves around the world of teaching. The novelty is given by the point of view: the viewer sees through the eyes of some novice teachers, young individuals, newcomers to a secondary school and their fears, doubts and fears before their new work as educators. The arrival of these teachers will reveal to us a whole universe of conflicts, loves, heartbreaks, illusions and hopes of a group of boys and girls and the people around them.

Cast Students Yolanda "Yoli" Freire Caballar (Andrea Duro) Better known as the "Zorra Poligonera" due to her debauched demeanor. She is proud of the neighborhood where she is from and she likes sex. Her first love is Isaac; after his death, she goes out with Quino, Julio and Román. She is the victim of two rapes, the first by a classmate, Oliver, and later by Julio's father who scams her by saying that if she has sex with him, he will erase her brother Berto's police record. Yoli's best friends are Cova, Paula, Ruth and Fer, with whom she has a very close friendship and had a relationship with, and she almost got pregnant with Fer. Her strong friendship with Ruth makes her forgive her for her cheating with Román. She starts a relationship with Salva. (seasons 1–7) Fernando "Fer" Redondo Ruano (Javier Calvo) At the beginning of the series, he was Rubén's best friend, Julio's brother. He is the best friend of Cova, Julio and Yoli. He is homosexual and at first, he was in love with Rubén and after Julio without being reciprocated. His first boyfriend is named Hugo, although the relationship will be brief for betraying his trust. But then he meets the great love of his life, David, with whom he will form a partnership for the story. At first, they see each other secretly but then their relationship becomes public. Sometime later they separate because of David's deceptions and Fer's jealousy and distrust. Then begins to go out with Borja, with whom he is about to marry but David interrupts the wedding and reconciles with Fer, who had never stopped loving him. They are going to live together but have another crisis due to some misunderstandings between them. Fer realizes that his jealousy only manages to ruin their relationship and regrets his behavior. He dies due to an accident with a shotgun. (seasons 1–7) Paula Blasco Prieto (Angy Fernández) She is the sister of Isaac and the best friend of Cova and Yoli. At the beginning of the series she likes Cabano, but her first boyfriend will be Jan, until he cheats on her and they break up. Afterwards, she is with Cabano for a while but the relationship does not end well, especially when Alma gets in the way and the three of them have a threesome. After the summer, she wants to go back to Cabano, but the fact of not getting it makes her console herself with Gorka and have sex with him and she becomes pregnant with Gorka. She decides to have the child, she does not want Gorka to take over the responsibilities and unexpectedly ends up falling in love with Gorka. When the child, Isaac, is born, Gorka leaves, but eventually returns and they leave together. She began to audition to be a singer and went on tour. (seasons 1–7) Ruth Gómez Quintana (Úrsula Corberó) She loses her parents in a car accident and Clara becomes her legal guardian. She has self-esteem issues. She was Isaac's girlfriend, but he left her for Irene. Later she is Gorka's girlfriend. Despite being very hung up with him, she feels that the relationship does not suit her. For a time she is with Cabano, but ends up returning with Gorka. Then she has bulimia problems that mean that she is admitted to a center all summer. After the summer she goes back to Cabano and helps him when he has cancer. Román's arrival creates a rapprochement, and he leaves Cabano when he leaves. For a while she and Román go out together until she goes to study design in Barcelona. In the last episode she sends a video to everyone, where she appears with Cabano in Barcelona. (seasons 1–7) Julio de la Torre Reig (Gonzalo Ramos) In the first episode his brother, Rubén, commits suicide and he wants to investigate what happened. Their father abandoned them when they were little and their mother lives in England, therefore he is always alone. He falls in love with Cova, his ex-sister-in-law and they have a relationship, he lost his virginity with Cova and after having sex without a condom, Cova discovers that she is pregnant and hides it from Julio, later they discover that she was not really pregnant and both suffer a Pregnancy scare, they end their relationship because of their insecurities. He becomes a friend of a Nazi and starts dating Lucía, his sister. He goes through a very troublesome time that even causes him to be expelled from the institute. He leaves the gang of neo-Nazis when they want to beat up Fer and he defends him. Later he will go out with Violeta. He will have a relationship with Yoli, until his father reappears and intervenes. He had an interest in Teresa until he discovers the plot with Álvaro. The return of Cova to Zurbarán leads him to resume his relationship with Cova since he was always in love with Cova. Julio tells Cova that he has to go with his mother to England in a month. Julio and Cova have sex at Paula's house while they both take care of Isaac, Gorka and Paula's son. Cova and Julio have sex at Paula's house while they both take care of Isaac, Gorka and Paula's son. Cova takes Julio to the park where they had sex for the first time together, when Julio and Cova are talking in the park, Julio tells Cova that what happened at Paula's house was not a mistake, his only mistake was letting her go, and Julio tells Cova that if she had been pregnant he would not have cared, because he knows that they would have been great parents. Before going with Cova to Alicante, David tells Julio that Cova has a boyfriend in Alicante, Cova tells Julio that she left her boyfriend after having sex with him. Julio goes to live with Cova in Alicante. (seasons 1–7) Covadonga "Cova" Ariste Espinel (Leonor Martín) She is the class delegate, she is very ecologist, hippie, bohemian and very mature for her age, is what differentiates her from the rest, being in many cases a leader for the rest of her peers. She is always defending lost causes. Her best friends are Paula, Yoli, Fer, Ruth and Julio. She was Rubén's girlfriend. She falls in love with Julio, her ex-brother-in-law and they have a relationship, with whom she has sex and after having sex without a condom, Cova discovers that she is pregnant and hides it from Julio, later they discover that she was not really pregnant and both suffer a Pregnancy scare, they end their relationship because of their insecurities. When Julio breaks up with her, she is increasingly concerned about Julio's Nazi companies. She moves to live in Alicante with her parents, because her father was given a job there. She returns for the birth of Isaac, the son of Gorka and Paula. When Gorka flees, he stays at Cova's house. The return of Cova to Zurbarán leads her to resume her relationship with Julio. Cova and Julio have sex at Paula's house while they both take care of Isaac, Gorka and Paula's son. Cova takes Julio to the park where they had sex for the first time together, when Julio and Cova are talking in the park, Julio tells Cova that what happened at Paula's house was not a mistake, his only mistake was letting her go, and Julio tells Cova that if she had been pregnant he would not have cared, because he knows that they would have been great parents. Cova had a boyfriend in Alicante, Cova left her boyfriend after having sex with Julio and after realizing that she still loves Julio. When she goes back to Alicante, Julio goes with her. (seasons 1–3; 5–7) Gorka Martínez Mora (Adam Jezierski) He is a very conflictive student, who is always in trouble and annoying his classmates. He gets to make very practical jokes to Jan and Fer. He goes out with Ruth, but he humbles her in such a way that they always end up leaving the relationship. His best friend is Cabano, but he fights with him when he finds out that he is dating Ruth, whom he calls "Mi rubia". He is about to change and stop being such a bad person when he discovers that he has got Paula pregnant. He decides to take care of the child and ends up falling in love with her. He has problems with the law for beating up a boy who ran over Paula and who almost lost the child. When he is accused of having drugged Teresa at a party, he decides to temporarily disappear to avoid jail. He returns when all this problem has been solved and for the birth of his son Isaac. Problems as a parent make him leave again. When he meets Paula again, he confesses that he left because Dolores, Paula's mother, was making his life impossible and they end up reconciling. (seasons 1–7) César Cabano de Vera (Maxi Iglesias) He is the "handsome" boy from high school who is followed by many girls, like Paula, at the beginning of the series he liked Paula but as she starts dating Jan he begins to fall in love with Ruth. He has many problems at home because his father mistreats his mother. When his father abandons them, he has to look for work, coming to work on sex pages on the internet. His best friend is Gorka, but they get into a fight when he starts dating Ruth. They break up when she tells him that she is still in love with Gorka. He begins dating Paula, but mostly because he feels guilty about Isaac's death. Alma tries to "help" her with her relationship with Paula, but after having a threesome she makes everything end badly. After the summer, go back to Ruth. Shortly after, he discovers that he has testicular cancer, but manages to overcome this disease. He goes to India for a few months and comes back to see life differently. He says he wants to dedicate himself to football. They end up signing him for a team from England. He ends his relationship with Ruth. In the last episode Ruth sends a video to everyone, where she appears with Cabano in Barcelona. (seasons 1–5; 7)