ANSWER:
Teach them about Allah and His beautiful names and attributes in a way that they can relate to.
You can also teach them stories from the seerah of the prophet salla Allahu alaihi wa sallam
Life’s Adornments: https://www.youtube.com/playlist?list=PLmeZZmICk2Qd8ZPlIytwuus6koQMuBHNg