Final answer:
The intended audience for the teacher's speech is a panel of teacher evaluators, who will judge the students' science projects.
Step-by-step explanation:
The intended audience for the teacher's speech is teacher evaluators. The speech instructions specify that the presentation will be to a faculty panel selected as judges. This indicates that the audience consists of teachers or administrative staff within the educational institution who will be assessing the students' science projects. Therefore, the students are required to be professional and comprehensive in their preparation, as they are presenting to an audience that is already well-versed in educational assessment and likely has a solid understanding of scientific concepts.