Material World resources

Students evaluate a fair test about whether salt or sugar solution dissolves faster.

Select the correct pair to set up a fair test. Assessment focus: controlling variables.

Task: Students fill in a chart to select the best material for making 6 objects, and give reasons for their answers. Assessment focus: properties of materials related to use.

Students are given an outline of an investigation on metal corrosion and a graph of some results. Students' ability to interpret the graph and knowledge of fair testing is assessed via short answer questions.

Students identify which substances undergo a permanent change when they are mixed together.

Students interpret a table of data in order to answer four questions on the properties of five different types of paper.

Students decide on the variables that will make an experiment about boiling water a fair test. Assessment focus: Recognising multiple variables.

Task: Describe what happens to ice in a glass of water, giving reasons, and explain where water forming on the outside of the glass comes from. Assessment focus: changes of state.