Susie,
in this module we have introduced the Framework for Inquiry as a guide for inquiry in Irish classrooms.
The structure of Engage / Investigate / take the Next Step and then Reflect can be used to centre the learning on the child, with their own science understanding being improved and consolidated through the inquiry steps.
If you have stations set up, a shared prompt through a picture book (see the many suggested ones here: https://www.spaceweek.ie/wp-content/uploads/2021/09/SpaceWeekJunior-1.pdf) can be ideal to engage the children.
I’d choose open ended activities, and perhaps share ‘task descriptors’ that give the children the method to make a thing, and let them then explore their understanding through play.
We will meet rockets in Module5, planets in Module2, stars in Module3, so you may want to incorporate some of those specific activities into this plan.