Nature/wonderment... outdoor activities - star watching, looking for different sea shells in rock pools, walks in the woods and other habitats, learning different trees and plants, foraging for blackberries and making crumble, looking for different cloud patterns etc. Marking the turning seasons. Give them a small corner of the garden to cultivate.
Science/technology past & present... Viking boats, NASA spacecraft, medieval medicine, watermills, simple physics/chemistry kit experiments to do at home, looking at leaves/onion skin/pond water under a microscope etc etc.
Literature/imagination... myths, fairy stories, modern stories like Harry Potter, poems, creative writing, oral storytelling, history, going to museums etc.
Cooking/baking... it's like alchemy where you stir your wishes in as you mix the bowl 