Homework to investigate an astronomy concept and produce a poster showing research.
Give each person a sheet of A3 paper.
Set as homework that they must research one of the following concepts and produce a poster presenting some facts:
the Northern Lights
The Sun, Eclipses
The Moon (if not already covered)
Space exploration or any other space related subject.
Next meeting, get together and each person present their poster, thus all learning facts about everything.