Answer:
I am what bring things together. Without me everything you see would be a total mass or debris everywhere.
I can be written, I can be spoken, I can be exposed, I can be broken. What am I?
By Moon or by Sun I shall be found. Yet I am undone if there's no light around.
I can speak with my hard metal tongue. But I cannot breathe for I have no lung
I am a mini solar powered computer.
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk