At -119°C and below, x will be a liquid and any temperature above -119°C, x will be a solid. Therefore when x is at 1°C, it's a solid.
Remember, melting means when a substance changes from solid to liquid state.
I started a thread before regarding if anyone has moved from Standard to Advance English at the beginning of Prelim. My teacher (who's also the head of the English Department) said that he's willing to move me tomorrow to Advance English but I'm worried it's a bit too much in terms of the work...
Option 1: Buy those NAPLAN preparation booklets from a Newsagent store/Big W (Kind of expensive though..)
Option 2: Tutor her yourself
Option 3: Tuition Centres (ABC College/Pre-Uni - That's the only tuition centres I know that caters for Primary students) Never heard of a tutor that tutors...