| A | B |
|---|
| a pile of earth or stones | mound |
| largest mounds in Illinois | Cahokia Mounds State Park |
| Why was Cahokia a key trading center | close to 3 major rivers |
| What did traders ship from Cahokia? | copper, lead and bison bones |
| What did Southern traders ship up the Mississippi? | shells, jewelry and pottery |
| Why did Thomas Jefferson buy the land from the French? | to expand trade and connect the NE, SE and West |
| Which two explorers did President Jefferson send to find an easy route to the Pacific? | Lewis and Clark |
| Where did Lewis and Clark start their expedition from? | St. Louis, Missouri |
| What was the main thing Lewis and Clark learned? | no direct water route from the Midwest to the Pacific |
| What is a boat powered by steam? | steamboat |
| What caused St. Louis to grow so fast? | invention of the steamboat |
| Why were steamboats so popular? | carried cargo and passengers faster |
| What is a hub? | center of activity |
| What drew business to Chicago? | completion of Erie Canal |
| What is the advantage of railroads over steamboats? | build railroads anywhere |
| What is a railroad that crosses the entire country called? | transcontinental railroad |
| What is the main form of transportation today? | cars and trucks |
| What do you call a set of wide, fast interconnecting highways that link all the states? | Interstate Highway System |
