| Questions | Answers |
|---|---|
| A group of parts that work together as a whole. | System |
| An object, diagram, or computer program that helps us understand something by making it simpler or easier to see. | model |
| A natural feature of the earth's surface. | landform |
| Capable of being lived in. | habitable |
| a proposed answer to a question about the natural world. | claim |
| A long, narrow gutter or groove which water can flow. | Channel |