| A | B |
|---|
| graph | diagram that presents information in a way that makes it easy to detect patterns, trends, or changes over time |
| line graph | kind of graph that shows changes over time |
| circle graph | kind of graph that shows how something can be divided into parts |
| navigation | science of determining a ship's location & direction |
| caravel | fast sailing ship that culd be steered easily & hold large amounts of cargo |
| Middle Ages | period of European history from around 500 to 1500 |
| merchant | a shop owner |
| expedition | journey made for psecial purpose |
| currency | coins,paper,or gold used as money in a country |
| caravan | group of people traveling together for safety,through desert areas |
