Thank you for sharing the assignment your grade 7 students would be working on. Earlier this year I enjoyed watching The Lost Pirate Kingdom on Netflix, https://www.netflix.com/de-en/title/81035118 I am certain this is a topic your year 7 students will enjoy learning about.
Some thoughts that I had for this were:
1. Arrange the resources according to the inquiry cycle. Which ones are good for gaining an initial overview of the life of a pirate (connect and wonder stage)? Which ones are more specialized which students can select from once they have developed a unique inquiry question to explore (for the investigate stage)? Doing this could help to limit the resources provided as Elizabeth has already mentioned.
2. Select a library resource to introduce to your students to use during the assignment. Does your library encyclopedia have a good article about the life of pirates. Could you list all of the books students can borrow from the library about pirates? You want to get your students used to using your school library for assignments and so using the collaboration to reinforce the habit of them using the library for research can help build this habit.
3. What FOSIL skills do you want your students to focus on during this inquiry? There are many skills that students need to develop over their school careers. Which one do you want them to hone in on during this unit? I imagine this would be done through a discussion with the teacher you are collaborating with and be written on the initial planning sheet.
Thank you for sharing and best of luck with this unit of inquiry.