2 What is happening? 2 Keywords: changesdissolvingmeltingvocabulary 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. 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