| Question | Answer |
| What is a reservoir? | An artificial lake created by a dam |
| What is a floodplain? | the flat area around a river that is covered with sediment as a result of flooding; makes good farmland |
| What is the water cycle? | the movement of water from the surface of the Earth to the atmosphere and back again |
| What 2 rivers join to form the main Nile? | Blue and White Nile |
| Name at least 2 countries that the Nile goes through. | Uganda, Ethiopia, Sudan, Egypt, Tanzania |
| What is a confluence? | flowing together or two streams |
| What is runoff? | water from rainfall that is not absorbed into the soil and flows into lakes |
| What is a cataract? | rapids or low waterfalls |
| How does a delta form? | A river drops off all of the sand and sediment it has been carrying in front of itself at the mouth of the river; then the river must push through this deposit to make its way out to the sea |
| Describe where the Nile is in Africa. | Northeast Africa; on the eastern side of the Sahara |
| What is a tributary? | a stream or river that flows into a larger stream |
| What is a wadi? | a dry riverbed that fills during a rainstorm |
| What is infiltration? | the movement of water from Earth's surface into the soil |
| What are headwaters? | streams that make up the beginning of a river |
| What is a source? | what a stream or river originates from |
| What is another term for "river system"? | Watershed or river basin |
| What direction does the Nile flow? | North |
| What is a river basin? | the area drained by a river and its tributaries |
| What is a river mouth? | the end of a river |
| What is a delta? | the triangle shaped deposit of sediment where a river flows into the ocean |
