Students consider the potential for chemical change when a range of everyday substances are mixed. They use logical reasoning to work out the consequences of four pairs of reactions.
Students classify six common substances as either a solid, liquid, or a gas. Students then group these substances into elements, mixtures, or compounds.
Students list four properties of copper metal and state if each property is physical or chemical. Students then explain how copper sulfate solution can be separated.
Task: Students read a pH scale to determine how it shows the increasing strength of an acid and a base solution and decide from different pH products what the effect would be on an acidic soil. Assessment focus: interpreting a pH scale.
Students are provided with a table that gives them some properties of five different materials. They answer four short answer questions that involve interpreting information from the table.