Cases of word usage

1) a large mass of snow and ice sliding down a mountain side (avalanche)

2) a deep, open crack, especially in ice on a glacier (crevasse)

3) a sheet of floating ice (floe)

4) (of an engine, pipe etc) to become filled with ice and not work (freeze up)

5) of, caused by, ice (glacial)

6) a long piece of ice made by the freezing of dripping water (icicle)

7) (to cause ice etc) to become liquid through heating; (of soft food) to dissolve, be softened, easily (melt)

8) a hard rubber disc used like a ball in ice hockey (puck)

9) a specially prepared area of ice (for skating or hockey), or floor (for roller-skating) (rink)

10) a long, narrow board used for sliding on ice (toboggan)