Which is which? 0 Overview Using this Resource Connecting to the Curriculum Marking Student Responses Working with Students Further Resources This task is about diagrams that represent elements, compounds or mixtures. Question 1Change answer Each of the diagrams can be labelled as being an element, compound or mixture. Select the correct label for each diagram. Each of the diagrams can be labelled as being an element, compound or mixture. Select the correct label for each diagram. a) elementcompoundmixtureelementcompoundmixture Question 1Change answer b) elementcompoundmixtureelementcompoundmixture Question 1Change answer c) elementcompoundmixtureelementcompoundmixture Question 1Change answer d) elementcompoundmixtureelementcompoundmixture Question 1Change answer e) elementcompoundmixtureelementcompoundmixture Question 1Change answer f) elementcompoundmixtureelementcompoundmixture Question 1Change answer g) elementcompoundmixtureelementcompoundmixture Question 1Change answer h) elementcompoundmixtureelementcompoundmixture Task administration: This task can be completed with pencil and paper or online with auto-marking. Level: 5 Curriculum info: Science, Investigating in science, Material World Keywords: structure of matter, elements, compounds, mixtures, diagrams Description of task: Students label six diagrams as an element, compound, or mixture. Curriculum Links: Science capabilities The capabilities focus is brought about by the conversations you have and the questions you ask. Capability: Interpret representations This resource provides opportunities to identify how symbols are used to represent the structure of elements, mixtures and compounds. Science capability: Interpret representations (TKI) Capability: Use evidence This resource provides opportunities to discuss using their developing science understandings to make inferences about particles. Science capability: Use evidence Science capabilities: Interpret representations, Use evidence Answers/responses: Y9 (04/1997) Y10 (04/1997) a) b) c) d) e) f) g) h) compound compound mixture element element element mixture mixture 7-8 correct - very difficult 4-6 correct - moderate 1-3 correct - easy 7-8 correct - very difficult 4-6 correct - easy 1-3 correct - very easy Diagnostic and formative information: Analysis of Responses – the bolded part is the correct answer a) element – 53%, compound – 34%, mixture – 0%, other or no response – 13%. b) element – 24%, compound – 53%, mixture – 9%, other or no response – 14%. c) element – 7%, compound – 4%, mixture – 75%, other or no response – 14%. d) element – 56%, compound – 29%, mixture – 1%, other or no response – 14%. e) element – 17%, compound – 34%, mixture – 35%, other or no response – 14%. f) element – 47%, compound – 31%, mixture – 8%, other or no response – 14%. g) element – 11%, compound – 8%, mixture – 66%, other or no response – 15%. h) element – 11%, compound – 29%, mixture – 46%, other or no response – 14%. True or false? Particles in solids, liquids, and gases Something wrong Match to the definition Formulae Particle nature of matter Elements, molecules and compounds Reading the periodic table Atoms in substances Understanding chemical symbols What is in the test tubes? Chlorophyll Grouping substances Atoms, elements and formulae Chemical symbols Atoms and elements Elements, compounds, atoms and molecules Melting and dissolving
