| A | B |
|---|
| explorers | people who travel in order to learn about |
| history | past events, a written account of past events |
| currents | flow of something, such as electricity or water |
| maps | graphic representations or plans of geographic locations |
| shells | the hard, outer coverings of water animals, such as clams and oysters |
| safer | more protected from harm, farther away from danger |
| toward | in the direction of, to |
| reach | be able to get to a necessary thing or place |
| greatest | most important; most superior |
| inventions | useful things created by people |
| sailors | people who work on a ship |
