| A | B |
| Preamble | Introduction to the U.S. Constitution |
| Congress | National legislature of the United States |
| House of Representatives | Lower house of Congress |
| Senate | Upper class of Congress |
| checks and balances | Provisions of the Constitution that keep one branch of the government from controlling the other two branches. |
| enumerated powers | Powers specifically granted in the Constitution |
| elastic clause | Clause in the Constitution that allows Congress to pass laws necessary to carry out its enumerated powers |
| implied powers | Powers not specifically stated in the Constitution |