Task: Create, use and identify ‘rules’ based on observable and/or measurable physical properties of common plastics. Assessment focus: classifying & identifying.
Task: Describe and compare some physical properties of plastic objects and identify the properties scientists might use for classifying materials. Assessment focus: classifying using physical properties.
For this practical students observe some activities which illustrate melting and dissolving. They write sentences about what they observe and then write what they think melting and dissolving mean.
Students are given a partially completed table which details materials which are used as either conductors or insulators of heat. Students complete the table by indicating whether the materials conduct or insulate heat or give an example of its use.
In this task, students look for patterns in electron arrangement in the periodic table. They use their ideas to place missing elements in the table, answer some questions about the patterns, and use the patterns to predict the properties of some elements.
Task: Watch a video of two sofas burning, record the results, and use the evidence to make inferences about fire retardants. Assessment focus: using observations to provide evidence.