 alert |
watchful |
| breaks |
comes apart |
| melt |
turn from a solid into a liquid
by heating |
| ocean |
a great body of salt water
that covers almost three-fourths of Earth's surface |
| thousands |
ten hundreds |
| glacier |
a large mass of ice formed
from snow on high ground |
| iceberg |
a large mass of ice floating
in the sea |
| ice pack |
a large area of ice floating
in the sea |
| lifeboats |
strong, open boats with oars,
specially built for saving lives at sea |
| Titanic |
large ship thought to be unsinkable
that sank on its maiden voyage when it struck an iceberg |
|
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