It may be more of a children's sci-fi but its about a group of kids, I can remember is the one kid is hearing impaired and they find this silver ball type... I also think I remember the whole thing being about them with rollerskates or
Something.. .

This has been bugging me for years as to what the movie was called? The movie I think is from the 80's

Cheers for any help

Solarbabies (http://www.imdb.com/title/tt0091981/)