| A | B |
| 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 |
| statement of fact | statement can be proved true or false |
| statement of opinion | statement of what someone believes or thinks |
| opinion clue words | believe, like, should |