Light it up with a fungi.
A very cool way to explore science is with a Glow in the Dark Mushroom Habitat Kit. It features Panellus Stipicus Spore which are bioluminescent. That is a really long fancy word for they make their own light. You also get a great book that tells you everything you need to know about the fungus and how to make it grow. The only thing you’ll need to add is a piece of wood and you’ll be ready to grow and glow!