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Glenelg River Geography Introduction

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Glenelg River Geography Introduction

Use the information on this sheet to investigate how the Glenelg River shapes and connects its region. Answer in your own words where asked.

A river across western Victoria

The Glenelg River rises in the Grampians (Gariwerd) in western Victoria and flows towards the coast. It crosses a varied landscape before reaching the coast near Nelson, where it enters Discovery Bay. Parts of its lower course wind through limestone country, creating bends and steep-sided sections called gorges. The river and its estuary provide habitat for plants and animals, and the waterway is valued for recreation and by communities along its course. Rivers change landscapes through erosion, transport and deposition. Erosion wears away rock and soil; transport carries sediment downstream; deposition happens when the river drops that sediment. The amount and speed of water, the rock type and the shape of the land all influence how a river changes over time.

Investigate the Glenelg

Use the passage above for Questions 1–10.

1.Match each geographical term to its meaning.

Erosion
Transportation
Deposition
Estuary

Place where a river meets the sea and fresh and salt water mix
Wearing away rock or soil
Carrying sediment downstream
Dropping sediment

2.According to the passage, where does the Glenelg River begin and where does it reach the coast?

3.Which state contains the Glenelg River's source and its mouth near Nelson?

South Australia
Victoria
New South Wales
Tasmania

4.What kind of landscape does the Glenelg River cross before reaching the coast?

5.Select the three processes that can shape a river landscape.

Erosion
Transportation of sediment
Deposition
The creation of new mountains by the river

6.A flood slows as it spreads onto flatter land and leaves sand behind. Which river process is happening, and why?

7.The passage says that parts of the lower Glenelg wind through limestone country and include gorges. Explain one way flowing water could help form a gorge over a long time.

8.Give two different reasons the Glenelg River is important to people or the natural environment.

9.True or false: The passage gives enough information to measure the Glenelg River's exact length.

TrueFalse

10.Write a short cause-and-effect explanation linking one river process to a change in the Glenelg landscape. Include the process and the change it can cause.