Wakefield Museums and Castles run regular workshops and activities at a number of different venues around the Wakefield area. Many are free. You can find the latest copy of the Wakefield Museums and Castles 'What’s On Guide' which includes many informal learning options available for families here.
There is also a Summer Planner which promotes something to do every day during the summer holidays, including the Libraries Summer Reading Challenge, which has a space theme this year linked to the very exciting Museum of the Moon which is coming to Wakefield in August. Find the planner here.