4 Water facts 1 Keywords: changes of matterchanges of statecondensationdistillationevaporationwater Task: Answer three questions. Assessment focus: condensation. Preview
5 Freezing salt water 0 Keywords: changes of matterfair testingfreezingplanning investigations Task: Plan a fair test to see if adding salt water to water affects how long it takes to freeze. Assessment focus: managing variables. Preview
2 Melting ice 6 Keywords: changes of matterdescriptionexplanationsheaticeinsulationmeltingpeer assessmentplanning investigations Describe methods for speeding up and slowing down melting of an ice cube using one of three provided objects, and explain why the methods would work. Assessment focus: planning an investigation. Preview
345 Melting and dissolving 6 Keywords: changes of matterdissolvingkey competenciesmeltingparticle theorypeer assessmentphysical changesstructure of matter Task: Answer two questions about melting and two questions about dissolving. Assessment focus: describe and explain melting and dissolving. Preview