Science · Year 5

Active learning ideas

Deposition and Landforms

Active learning is essential for understanding deposition because it moves students from abstract concepts to tangible experiences. By engaging in hands-on modeling and experimentation, students directly observe how geological processes shape landscapes, making the learning more concrete and memorable.

• ACARA Content Descriptions
• AC9S5U02

• 30–60 min
• Pairs → Whole Class
• 3 activities

Activity 01

• Project-Based Learning
• 45 min · Small Groups

Model: River Delta Formation

Students create a model landscape using sand and gravel in a tray. They then use a watering can or hose to simulate a river flowing through the landscape, observing how sediment is deposited at the 'mouth' to form a delta.

Analyze how deposition contributes to the formation of beaches and sand dunes.

Facilitation Tip

For the 'Model: River Delta Formation' activity, encourage students during their simulation to adjust the water flow rate and observe how it impacts the speed and location of sediment deposition, mirroring real-world river dynamics.

• Apply
• Analyze
• Evaluate
• Create
• Self-Management
• Relationship Skills
• Decision-Making

Activity 02

• Project-Based Learning
• 30 min · Pairs

Experiment: Wind Erosion and Deposition

In a clear container, students create a 'landscape' with sand. Using a hairdryer on a low setting, they simulate wind erosion and observe where the sand is deposited, forming miniature dunes.

Explain the process by which a river delta is formed.

Facilitation Tip

During the 'Experiment: Wind Erosion and Deposition' simulation game, prompt students to consider how changing the 'wind speed' (hairdryer setting) or 'landscape' (adding obstacles) affects the patterns of sand dunes that form.

• Apply
• Analyze
• Evaluate
• Create
• Self-Management
• Relationship Skills
• Decision-Making

Activity 03

• Project-Based Learning
• 60 min · Whole Class

Field Study: Local Landforms

Visit a local beach, park with sandy areas, or riverbank. Students identify and sketch features that show evidence of deposition, such as sandbars, ripples, or sediment buildup.

Construct a model demonstrating the formation of a specific depositional landform.

Facilitation Tip

When conducting the 'Field Study: Local Landforms' museum exhibit, guide groups to think like curators, selecting the most illustrative features to present and preparing clear, concise explanations for their classmates acting as museum visitors.

• Apply
• Analyze
• Evaluate
• Create
• Self-Management
• Relationship Skills
• Decision-Making

A few notes on teaching this unit

This topic is best taught through an inquiry-based approach where students actively investigate. Avoid simply lecturing about deposition; instead, provide opportunities for exploration and discovery. Research suggests that allowing students to manipulate materials and observe outcomes fosters deeper conceptual understanding and retention.

Successful learning looks like students confidently explaining how water, wind, or ice transport and deposit sediment. They should be able to connect their observations from the model-building and experiments to real-world landforms and articulate the dynamic nature of Earth's surface.

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Watch Out for These Misconceptions

• During 'Model: River Delta Formation,' watch for students who might think the deposited sand is simply 'gone' or that the delta forms instantly without regard to water flow.

  Redirect students by asking them to observe how the water's speed changes as it enters the tray and how this affects where the sand settles, emphasizing that deposition is a process tied to energy loss.

• During 'Experiment: Wind Erosion and Deposition,' students might believe that wind simply blows sand away and doesn't create new features.

  Prompt students to notice the patterns the moving sand creates against obstacles or where it accumulates, guiding them to see that wind is actively building small dunes and landforms.

• During 'Field Study: Local Landforms,' students may overlook subtle features or consider them insignificant, thinking only large, dramatic landforms are important results of deposition.

  Encourage students to sketch and describe even small accumulations of sand or soil, prompting them to consider how these smaller features are formed by the same processes that create larger landforms.

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Methods used in this brief

• Project-Based Learning