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Waves & Different Materials

CONCEPTUAL
Science›Waves, Light & Sound|Ages 12—13|ID: mt_w5HzPpOUmj

Explain how waves can be absorbed, transmitted, or reflected by different materials, and apply these interactions to explain colour perception, sight, communication technologies, and the effects of different surfaces on wave behaviour

Mastery Evidence

  • Explains the difference between absorption, transmission, and reflection of waves
  • Uses the three interactions to explain how we see coloured objects
  • Explains how radio waves, visible light, and infrared are used in different communication technologies
  • Describes how the properties of a surface (colour, texture, material) determine how it interacts with radiation

Assessment Prompt

“If [child] was wearing a black t-shirt on a sunny day and a friend was wearing white, could they explain using wave interactions why the black shirt gets hotter — and which properties of materials determine how they absorb or reflect radiation?”

Curriculum Standards2 alignments

MS-PS4-2Next Generation Science Standards (NGSS) Middle Schoolcodes only
Standard code — full text not included in this dataset.
KS3.Sci.Phys.Waves.4The national curriculum in England
Wave Interactions and Sight

the effects of absorption, transmission and reflection of waves on colour, sight and light

Science · KS3

Prerequisites2

Show full prerequisite tree
  • Wave Properties & Types hard

    Wave interactions with materials (absorption, transmission, reflection) require the wave properties framework

  • The Electromagnetic Spectrum hard

    Analysing how different materials interact with different EM waves requires understanding the full EM spectrum

    • Wave Properties & Types hard

      The electromagnetic spectrum is understood as a family of transverse waves — requires the general wave properties framework

    • Reflection & Refraction soft

      Reflection and refraction of light provides entry-point experience with one member of the EM spectrum

      • Drawing Ray Diagrams hard

        The law of reflection is described and verified using ray diagrams for reflection

        • Measuring angles hard

          Drawing ray diagrams requires measuring angles accurately with a protractor — the core skill in mt_4MFUAsbx_6

          • Types of angles (age 8+) hard

            Measuring and drawing angles with a protractor requires knowing how to mark and label angles using standard notation

          • Degrees and turns hard

            Using a protractor requires understanding degree measurement

            • What Is an Angle? hard

              Degree measurement system requires understanding what an angle is

              • Types of angles hard

                Angle definition builds on understanding right angles

                • Right Angles & Turns hard

                  Identifying right angles and greater/less than right angle is prerequisite to naming acute/obtuse

                  • Understanding angles hard

                    Identifying right angles requires understanding what an angle is

                    • 2-D shapes (age 6+) soft

                      Understanding angles as shape properties requires knowing basic shape properties

                      • Angles in triangles (age 6+) soft

                        Understanding defining attributes supports describing shape properties formally

                      • 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

                    • Position, direction, and movement hard

                      Recognising angles as turns extends Y2 work on quarter/half/three-quarter turns

                      • Positional Language hard

                        Position/direction vocabulary with right angles extends basic positional language

                      • Turns & Directions hard

                        Right-angle turns (clockwise/anti-clockwise) build directly on whole/half/quarter turns from Year 1

                  • Types of angles (age 8+) soft

                    Identifying right angles and turns is supported by the convention of marking right angles with a small square

                  • Position, direction, and movement hard

                    Right angles as quarter turns extends Y2 turn vocabulary

                    • Positional Language hard

                      Position/direction vocabulary with right angles extends basic positional language

                    • Turns & Directions hard

                      Right-angle turns (clockwise/anti-clockwise) build directly on whole/half/quarter turns from Year 1

                      • What Is a Half? soft

                        Understanding half and quarter turns benefits from the concept of halves and quarters

                      • Positional Language hard

                        Describing movement and turns builds on positional language

              • Right Angles & Turns hard

                Angle definition builds on classifying acute/obtuse angles

                • Understanding angles hard

                  Identifying right angles requires understanding what an angle is

                  • 2-D shapes (age 6+) soft

                    Understanding angles as shape properties requires knowing basic shape 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

                  • Position, direction, and movement hard

                    Recognising angles as turns extends Y2 work on quarter/half/three-quarter turns

                    • Positional Language hard

                      Position/direction vocabulary with right angles extends basic positional language

                    • Turns & Directions hard

                      Right-angle turns (clockwise/anti-clockwise) build directly on whole/half/quarter turns from Year 1

                      • What Is a Half? soft

                        Understanding half and quarter turns benefits from the concept of halves and quarters

                      • Positional Language hard

                        Describing movement and turns builds on positional language

                • Types of angles (age 8+) soft

                  Identifying right angles and turns is supported by the convention of marking right angles with a small square

                • Position, direction, and movement hard

                  Right angles as quarter turns extends Y2 turn vocabulary

                  • Positional Language hard

                    Position/direction vocabulary with right angles extends basic positional language

                  • Turns & Directions hard

                    Right-angle turns (clockwise/anti-clockwise) build directly on whole/half/quarter turns from Year 1

                    • What Is a Half? soft

                      Understanding half and quarter turns benefits from the concept of halves and quarters

                    • Positional Language hard

                      Describing movement and turns builds on positional language

      • Reflecting Light soft

        Earlier work on light reflecting from surfaces provides the experiential grounding for formal reflection laws

      • Light Travels in Straight Lines hard

        Reflection and refraction build directly on understanding that light travels in straight lines and casts shadows

      • Wave Behaviour Vocabulary hard

        Applying the law of reflection and refraction requires both 'angle of incidence/reflection' and 'refraction' vocabulary

    • Observing with Light Waves soft

      EM spectrum as astronomy tool depends on knowing the full EM spectrum from radio to gamma

      • Why the Sun Looks Brightest hard

        Using the EM spectrum as an astronomy tool depends on understanding stellar brightness and magnitude

        • The Sun is a star hard

          Must know the Sun is a star before understanding why it appears brighter than other stars

          • Sun, Moon & Stars hard

            Must know the Sun is a sky object before learning it is a star

            • Why seasons change soft

              Curriculum daylight/seasons observation supports exploratory Sun/Moon/stars identification

              • Naming the Planets soft

                Relating daylight length to time of year draws on orbit and solar system vocabulary

              • Seasonal changes soft

                Seasonal changes observation supports daylight pattern recognition

          • Our Solar System hard

            Must know about the solar system before learning the Sun is at its centre

            • Sun, Moon & Stars hard

              Must know the Sun and stars before learning about planets and the solar system

              • Why seasons change soft

                Curriculum daylight/seasons observation supports exploratory Sun/Moon/stars identification

                • Naming the Planets soft

                  Relating daylight length to time of year draws on orbit and solar system vocabulary

                • Seasonal changes soft

                  Seasonal changes observation supports daylight pattern recognition

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