Amba is an Earth Science PhD student. They have been asked to give a talk to the year 10s at a local high school who are working on a project about meteorites, Amba's area of study. 

Amba is very excited and talks to the class teachers the week before to find out what the students are doing and have learned about meteorites so far. 

The talk is held in a science lab at the school, which is quite large, so Amba makes sure to speak loudly and clearly. Amba introduces themselves and the topic, shows some images and explains different types of meteorites. Amba wants to make sure the talk is accurate, so uses the technical names for the different meteorites, structures and processes in their work. 

After speaking for a while, Amba gives the class some real meteorite samples and photos to look at and classify based off the information provided. 

As Amba walks around, they notice that many groups are struggling to identify the different information about meteorites, even though they had explained them in detail. 

What aspect of the presentation event most likely led to the group not understanding the information Amber shared?