Investigation resources

This practical task requires students to make observations and draw diagrams about diffusion that occurs when food colouring is added to water.

Task: select a card to show how to control the variables of an investigation into the rolling distance of marbles on different surfaces. Assessment focus: controlling variables.

This practical task has two parts. The first part of this practical requires students to observe the effects of different indicators on different substances. Students use these results to identify if some other substances are acid, alkali, or neutral.

Reading text to find information about how scientists work. Assessment focus: interpreting information about how scientists work.

This practical task consists of two parts. Students test various substances with hydrochloric acid, iodine solution, and universal indicator, and then complete a table with their observations. The second part requires students to identify four unknown solids using their tests and results from part one.

This practical assessment requires students to design and carry out tests on three properties of four different fabrics in order to find the most suitable fabric for the stated purpose.

This practical task requires students to use methods of separation to separate a mixture of salt, sand, and iron filings. Students explain how they did this and the property of the substance that they used.

Students look at two diagrams. The first shows iron nails in test tubes with boiled water or tap water, the second shows iron nails with moisture either present or absent. Students answer five questions about these investigations.

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 conduct a practical, statistical investigation. They decide on the question to investigate, conduct the survey, complete the tally chart, and construct and label a bar graph.

Students conduct a practical, statistical investigation. They decide on a question, categories, conduct the survey, tally and graph the results on a bar graph.

Students conduct a practical, statistical investigation. They decide on a Topic and question, conduct the survey, complete the tally chart, construct a bar graph of the major ideas and make statements about the results.