This is the 1933rd most frequent Spanish word.
realizarán
"Realizarán" means "they will carry out" or "they will perform."
In this sentence, 'realizarán' is used to indicate that the persons mentioned will perform or carry out a certain action (the math test) in the future.
Mañana ellos realizarán la prueba de matemáticas.
Tomorrow, they will carry out the math test.
Here, 'realizarán' signifies the execution or undertaking of a task (conducting research) by the students, again in a future context.
Los estudiantes realizarán una investigación sobre biodiversidad.
The students will conduct research on biodiversity.
In this sentence, 'realizarán' conveys that the technicians will perform the task of system maintenance, demonstrating professionalism and work expertise.