I have lost my iPod, but its connected to 'find my iPhone' but offline

I've lost my Ipod, even though its connected to 'find my iphone' its offline, i'm pretty sure its still on with battery power but its not connected to any internet, so thats why its offline! Is there anyway of still finding it or finding out where it was when it was last online?

This just means your iPod is either
A) Not connected to a Wi-Fi source
B) iPod is dead (not charged)

I JUST LOST MY IPAD ON A BUS FFS I'm ONLY 13 ITS MY SCHOOLS IPAD SCHOOLS GONNA KILL ME WHAT DO I DO?