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How Tectonic Plates Move

CONCEPTUAL
Science›Volcanoes & Earthquakes|Ages 11—12|ID: mt_gv_uoHkdjR

Understand that convection currents in the molten mantle drive the movement of rigid tectonic plates; distinguish between convergent (collision/subduction), divergent (spreading ridges), and transform (sliding) plate boundaries; explain why volcanoes, earthquakes, and mountain chains cluster at boundaries; introduce the Wilson cycle of supercontinent assembly and breakup

Mastery Evidence

    Assessment Prompt

    “If [child] looks at a world map showing where volcanoes and earthquakes happen, can they explain why these events follow specific ring-shaped patterns rather than occurring randomly around the globe?”

    Prerequisites2

    Show full prerequisite tree
    • Seismic Waves & Earth's Interior hard

      Plate tectonics framework is prerequisite for understanding why seismic waves reveal Earth structure at boundaries

    • Famous Eruptions & Pangaea hard

      Advanced plate tectonics depends on famous eruptions and Pangaea context

      • Plate Boundaries hard

        Understanding global effects requires knowing plate tectonics mechanism

        • Why Earthquakes Happen hard

          Plate boundaries as earthquake cause builds on simpler causal model

        • Tectonic Plates hard

          Plate boundary mechanisms require knowing what tectonic plates are

          • Ring of Fire hard

            Plate concept explains the patterns of where earthquakes/volcanoes occur

          • Finding patterns in data soft

            Tectonic plates concept benefits from prior map-reading of Earth's features

            • Rock layers and Earth's history soft

              Interpreting maps of Earth surface features is enriched by understanding cross-section views of geological strata and layers

              • 3-D shapes (age 9+) soft

                Interpreting cross-section diagrams of Earth builds on the skill of identifying 3-D shapes from 2-D representations

                • 2-D shapes (age 7+) hard

                  Y3 drawing 2D and making 3D shapes is prerequisite to identifying 3D from 2D representations

                  • Edges, vertices, and faces hard

                    Making/describing 3-D shapes requires knowing their properties (edges, vertices, faces)

                    • 3-D shapes hard

                      Describing 3-D properties (edges, vertices, faces) requires knowing the shapes first

                    • Nets of 3-D Shapes soft

                      Counting edges, vertices, and faces is reinforced by analysing nets where each face is visible as a separate 2-D shape

                    • 3-D shapes (age 5+) hard

                      Formal property description extends informal analysis of shapes

                      • 2-D shapes hard

                        Analysing and comparing shapes requires being able to name them first

                      • 3-D shapes hard

                        Analysing 3-D shapes requires recognising and naming them

                  • 2-D shapes (age 6+) hard

                    Drawing 2-D shapes requires knowing their properties

                    • Angles in triangles (age 6+) soft

                      Understanding defining attributes supports describing shape properties formally

                      • 2-D shapes hard

                        Distinguishing defining vs non-defining attributes requires knowing common 2-D shape names first

                      • 3-D shapes (age 5+) hard

                        Identifying defining attributes builds on informal analysis and comparison of shapes

                        • 2-D shapes hard

                          Analysing and comparing shapes requires being able to name them first

                        • 3-D shapes hard

                          Analysing 3-D shapes requires recognising and naming them

                    • 2-D shapes hard

                      Describing properties of 2-D shapes (sides, symmetry) requires knowing the shapes first

                    • 3-D shapes (age 5+) hard

                      Formal property description extends informal analysis of sides and vertices

                      • 2-D shapes hard

                        Analysing and comparing shapes requires being able to name them first

                      • 3-D shapes hard

                        Analysing 3-D shapes requires recognising and naming them

                  • Nets of 3-D Shapes soft

                    Drawing 2-D shapes and making 3-D shapes from materials is supported by being able to sketch and interpret nets

                • Nets of 3-D Shapes hard

                  Identifying 3-D shapes from 2-D representations requires understanding the relationship between a net and its solid

            • Types of rocks hard

              Interpreting patterns of Earth's geological features requires rock type and erosion vocabulary

            • Shapes of land and water hard

              Must model landforms and water bodies before analysing map patterns of Earth's features

              • Seasonal changes soft

                Seasonal observation supports understanding land and water features

            • Erosion and weathering soft

              Understanding weathering/erosion helps explain patterns in Earth's features

              • Types of rocks hard

                Measuring weathering and erosion rates requires 'weathering', 'erosion', and 'deposition' vocabulary

              • Preventing Erosion hard

                Must understand erosion prevention before measuring weathering/erosion effects systematically

              • Properties of materials soft

                Rock properties knowledge supports understanding how weathering breaks down different rocks

          • Earth's Layers hard

            Tectonic plates are pieces of the crust (requires knowing Earth has layers)

            • What Is a Volcano hard

              Understanding layers requires knowing what a volcano is (motivation for internal structure)

            • Earth Is Made of Rock hard

              Earth's layers builds on knowing Earth is made of rock

      • Eruption Types & Volcano Shape soft

        Famous eruptions benefit from understanding eruption types

        • Active, Dormant & Extinct hard

          Eruption types build on volcano classification

          • Power of Eruptions soft

            Classification benefits from understanding eruptions vary in power

            • What Is a Volcano soft

              Appreciating eruption power benefits from knowing what a volcano is

          • What Is a Volcano hard

            Classifying volcanoes requires knowing what a volcano is

        • Plate Boundaries soft

          Eruption types benefit from plate boundary context

          • Why Earthquakes Happen hard

            Plate boundaries as earthquake cause builds on simpler causal model

          • Tectonic Plates hard

            Plate boundary mechanisms require knowing what tectonic plates are

            • Ring of Fire hard

              Plate concept explains the patterns of where earthquakes/volcanoes occur

            • Finding patterns in data soft

              Tectonic plates concept benefits from prior map-reading of Earth's features

              • Rock layers and Earth's history soft

                Interpreting maps of Earth surface features is enriched by understanding cross-section views of geological strata and layers

                • 3-D shapes (age 9+) soft

                  Interpreting cross-section diagrams of Earth builds on the skill of identifying 3-D shapes from 2-D representations

                  • 2-D shapes (age 7+) hard

                    Y3 drawing 2D and making 3D shapes is prerequisite to identifying 3D from 2D representations

                    • Edges, vertices, and faces hard

                      Making/describing 3-D shapes requires knowing their properties (edges, vertices, faces)

                      • 3-D shapes hard

                        Describing 3-D properties (edges, vertices, faces) requires knowing the shapes first

                      • Nets of 3-D Shapes soft

                        Counting edges, vertices, and faces is reinforced by analysing nets where each face is visible as a separate 2-D shape

                      • 3-D shapes (age 5+) hard

                        Formal property description extends informal analysis of shapes

                        • 2-D shapes hard

                          Analysing and comparing shapes requires being able to name them first

                        • 3-D shapes hard

                          Analysing 3-D shapes requires recognising and naming them

                    • 2-D shapes (age 6+) hard

                      Drawing 2-D shapes requires knowing their properties

                      • Angles in triangles (age 6+) soft

                        Understanding defining attributes supports describing shape properties formally

                        • 2-D shapes hard

                          Distinguishing defining vs non-defining attributes requires knowing common 2-D shape names first

                        • 3-D shapes (age 5+) hard

                          Identifying defining attributes builds on informal analysis and comparison of shapes

                      • 2-D shapes hard

                        Describing properties of 2-D shapes (sides, symmetry) requires knowing the shapes first

                      • 3-D shapes (age 5+) hard

                        Formal property description extends informal analysis of sides and vertices

                        • 2-D shapes hard

                          Analysing and comparing shapes requires being able to name them first

                        • 3-D shapes hard

                          Analysing 3-D shapes requires recognising and naming them

                    • Nets of 3-D Shapes soft

                      Drawing 2-D shapes and making 3-D shapes from materials is supported by being able to sketch and interpret nets

                  • Nets of 3-D Shapes hard

                    Identifying 3-D shapes from 2-D representations requires understanding the relationship between a net and its solid

              • Types of rocks hard

                Interpreting patterns of Earth's geological features requires rock type and erosion vocabulary

              • Shapes of land and water hard

                Must model landforms and water bodies before analysing map patterns of Earth's features

                • Seasonal changes soft

                  Seasonal observation supports understanding land and water features

              • Erosion and weathering soft

                Understanding weathering/erosion helps explain patterns in Earth's features

                • Types of rocks hard

                  Measuring weathering and erosion rates requires 'weathering', 'erosion', and 'deposition' vocabulary

                • Preventing Erosion hard

                  Must understand erosion prevention before measuring weathering/erosion effects systematically

                • Properties of materials soft

                  Rock properties knowledge supports understanding how weathering breaks down different rocks

            • Earth's Layers hard

              Tectonic plates are pieces of the crust (requires knowing Earth has layers)

              • What Is a Volcano hard

                Understanding layers requires knowing what a volcano is (motivation for internal structure)

              • Earth Is Made of Rock hard

                Earth's layers builds on knowing Earth is made of rock

        • Inside a Volcano hard

          Eruption types depend on understanding magma and internal volcano structure

          • Earth's Layers hard

            Magma chamber concept requires knowing Earth has hot interior layers

            • What Is a Volcano hard

              Understanding layers requires knowing what a volcano is (motivation for internal structure)

            • Earth Is Made of Rock hard

              Earth's layers builds on knowing Earth is made of rock

          • What Is a Volcano hard

            Internal volcano structure builds on basic volcano knowledge

      • Pompeii & Vesuvius hard

        Famous eruptions builds on Pompeii as first historical eruption case study

        • Power of Eruptions hard

          Understanding Pompeii's destruction requires knowing eruptions are powerful

          • What Is a Volcano soft

            Appreciating eruption power benefits from knowing what a volcano is

        • Inside a Volcano soft

          Pompeii story is enriched by understanding volcano internal structure

          • Earth's Layers hard

            Magma chamber concept requires knowing Earth has hot interior layers

            • What Is a Volcano hard

              Understanding layers requires knowing what a volcano is (motivation for internal structure)

            • Earth Is Made of Rock hard

              Earth's layers builds on knowing Earth is made of rock

          • What Is a Volcano hard

            Internal volcano structure builds on basic volcano knowledge

        • What Is a Volcano hard

          Pompeii story requires understanding what a volcano is and what eruptions do

      • Tectonic Plates soft

        Continental drift (Pangaea) builds on plate concept

        • Ring of Fire hard

          Plate concept explains the patterns of where earthquakes/volcanoes occur

        • Finding patterns in data soft

          Tectonic plates concept benefits from prior map-reading of Earth's features

          • Rock layers and Earth's history soft

            Interpreting maps of Earth surface features is enriched by understanding cross-section views of geological strata and layers

            • 3-D shapes (age 9+) soft

              Interpreting cross-section diagrams of Earth builds on the skill of identifying 3-D shapes from 2-D representations

              • 2-D shapes (age 7+) hard

                Y3 drawing 2D and making 3D shapes is prerequisite to identifying 3D from 2D representations

                • Edges, vertices, and faces hard

                  Making/describing 3-D shapes requires knowing their properties (edges, vertices, faces)

                  • 3-D shapes hard

                    Describing 3-D properties (edges, vertices, faces) requires knowing the shapes first

                  • Nets of 3-D Shapes soft

                    Counting edges, vertices, and faces is reinforced by analysing nets where each face is visible as a separate 2-D shape

                  • 3-D shapes (age 5+) hard

                    Formal property description extends informal analysis of shapes

                    • 2-D shapes hard

                      Analysing and comparing shapes requires being able to name them first

                    • 3-D shapes hard

                      Analysing 3-D shapes requires recognising and naming them

                • 2-D shapes (age 6+) hard

                  Drawing 2-D shapes requires knowing their properties

                  • Angles in triangles (age 6+) soft

                    Understanding defining attributes supports describing shape properties formally

                    • 2-D shapes hard

                      Distinguishing defining vs non-defining attributes requires knowing common 2-D shape names first

                    • 3-D shapes (age 5+) hard

                      Identifying defining attributes builds on informal analysis and comparison of shapes

                      • 2-D shapes hard

                        Analysing and comparing shapes requires being able to name them first

                      • 3-D shapes hard

                        Analysing 3-D shapes requires recognising and naming them

                  • 2-D shapes hard

                    Describing properties of 2-D shapes (sides, symmetry) requires knowing the shapes first

                  • 3-D shapes (age 5+) hard

                    Formal property description extends informal analysis of sides and vertices

                    • 2-D shapes hard

                      Analysing and comparing shapes requires being able to name them first

                    • 3-D shapes hard

                      Analysing 3-D shapes requires recognising and naming them

                • Nets of 3-D Shapes soft

                  Drawing 2-D shapes and making 3-D shapes from materials is supported by being able to sketch and interpret nets

              • Nets of 3-D Shapes hard

                Identifying 3-D shapes from 2-D representations requires understanding the relationship between a net and its solid

          • Types of rocks hard

            Interpreting patterns of Earth's geological features requires rock type and erosion vocabulary

          • Shapes of land and water hard

            Must model landforms and water bodies before analysing map patterns of Earth's features

            • Seasonal changes soft

              Seasonal observation supports understanding land and water features

          • Erosion and weathering soft

            Understanding weathering/erosion helps explain patterns in Earth's features

            • Types of rocks hard

              Measuring weathering and erosion rates requires 'weathering', 'erosion', and 'deposition' vocabulary

            • Preventing Erosion hard

              Must understand erosion prevention before measuring weathering/erosion effects systematically

            • Properties of materials soft

              Rock properties knowledge supports understanding how weathering breaks down different rocks

        • Earth's Layers hard

          Tectonic plates are pieces of the crust (requires knowing Earth has layers)

          • What Is a Volcano hard

            Understanding layers requires knowing what a volcano is (motivation for internal structure)

          • Earth Is Made of Rock hard

            Earth's layers builds on knowing Earth is made of rock

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