Gather and interpret data resources

Students are asked one multiple-choice and one short answer question about fair testing.

Students indicate for each of six different variables those that need to be kept the same for an investigation about dissolving different types of sugar.

Task: Measure 100mL of water into three different pieces of equipment. Weigh the result and calculate the precision of using that piece of equipment. Assessment focus: measuring and evaluating the accuracy of equipment.

For this practical task students investigate convection currents when tea leaves are placed into a beaker of water that is being heated. They are asked to make observations and to provide an explanation of what they have observed.

This practical task is about heat absorption. From a given list students choose the equipment they would use to heat cold tap water as much as possible. Students complete the investigation, explain why each piece of equipment was selected, and record their results.

Task: Students place in order four beakers of copper sulphate solution from most to least concentrated. They then explain what would happen if two beakers were put together, and explain the term "concentration". Assessment focus: solutions.

Task: Select which state of water applies to a list of places where water can be found. Assessment focus: states of water.

This practical task investigates the effect of temperature on the rate at which corn pops. Students collect data and make a conclusion.

This practical task assesses students' ability to record and graph data, and draw conclusions, as they conduct an experiment on the rate at which an ice cube melts in different temperatures.

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.

Students outline a test they could do to show if a substance is a metal or not.

Students draw a circle around those objects that are hard.

For this practical task students complete a table of observations on nine common materials. Students then use their results to group the materials according to similar properties.

This practical task requires students to sort some common items from hardest to softest. Students then explain a test that they used to help determine this.

In this practical task students investigate the effect of temperature on viscosity. Students describe and explain what has happened.

This practical task has students investigate the surface area of three objects and whether this influences the rate of evaporation. Students fill in a table, and calculate the water loss and answer questions to show their understanding.

Task: Plan a fair test to see if adding salt water to water affects how long it takes to freeze. Assessment focus: managing variables.

Plan an investigation to find out which of two students' predictions is correct, and identify how to recognise what a result would look like. Assessment focus: identifying what to measure or compare to answer a science question.

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

Task: Predict, Observe, Explain, (POE) activity observing what happens to air in a balloon when it is heated. Assessment focus: behaviour of gases when heated and cooled.

Students outline four ways of improving a given plan for an investigation to make it a fair test.

Students answer five questions about 'fair testing' for an outlined investigation.

Students explain the terms physical and chemical change. Then they read a passage of text and identify the six changes that have occurred and state if each change is a physical or a chemical change.

Students explain two ways to make salt dissolve faster when in cold water.

Task: Identify which variables should be kept the same to compare reaction times. Assessment focus: control of variables.