5 Acid rain 0 Keywords: acid rainchangesexploringinvestigationmetalsnon-metalstable construction For this practical task students follow a plan to determine the effects of a weak acid on different building materials. Students need to put their results into a table and write a conclusion. Preview
5 Metal or non-metal 1 Keywords: classificationmetalsnon-metalsphysical propertiespractical This practical task requires students to carry out three tests to find out if each element is a metal or non-metal. Preview