Starter quiz
- What is the source of a river?
- Where the river meets the sea
- The point where the river begins ✓
- The widest part of the river
- A small lake along the river
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- What is the mouth of a river?
- Where the river starts
- Where the river joins another river
- Where the river flows into a lake or sea ✓
- A small stream flowing into the river
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- What is the main process that shapes river valleys?
- Erosion ✓
- Condensation
- Freezing
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- In which part of a river is deposition most likely to occur?
- Upper course
- Middle course
- Lower course ✓
- At the source
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- What is river discharge?
- The volume of water flowing through a channel at any given point ✓
- The speed of a river
- The amount of rainfall in a year
- The depth of the river
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- Which of these are ways a river transports sediment?
- Suspension ✓
- Saltation ✓
- Hydraulic action
- Solution ✓
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Exit quiz
- Match the lesson's keywords and their definitions.
- discharge⇔the volume of water flowing through a river channel at any given time ✓
- infiltration⇔the process by which water on the ground surface enters the soil ✓
- lag time⇔the time between the peak rainfall and the peak discharge ✓
- drainage density⇔a measure of how many rivers and streams there are within a given area ✓
- What does a storm hydrograph show?
- The speed of wind during a storm
- The depth of a river at different locations
- Changes in river discharge over time during a storm ✓
- The temperature of water in a river
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- What is peak discharge on a storm hydrograph?
- The highest amount of rainfall recorded
- The maximum river discharge during a storm ✓
- The lowest river discharge recorded
- The total volume of water in a river
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- What does a steep rising limb on a hydrograph indicate?
- Slow water movement
- No change in river flow
- A dry period
- Rapid increase in river discharge ✓
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Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- The storm hydrograph shows the relationship between precipitation and discharge.
- Physical and human factors affect the shape of the storm hydrograph.
Common misconception
A storm hydrograph shows rainfall.
A storm hydrograph shows river discharge changes over time, not just rainfall.
Keywords
Discharge - the volume of water flowing through a river channel at any given time, measured in cumecs
Infiltration - the process by which water on the ground surface enters the soil
Lag time - the time between the peak rainfall and the peak discharge
Drainage density - a measure of how many rivers and streams there are within a given area. A high drainage density indicates many streams and rivers in the given area
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