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For this practical task students complete a table of observations for the following substances: vinegar, baking soda, and vinegar and baking soda mixed together.

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.

For this practical task students follow a plan to determine the best temperature for the reaction of rennet with milk. Students need to make observations and write a report on their findings.

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.

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

For this practical task students record their observations as an egg is poached in water.

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

For this practical task students plan and carry out a fair test to determine which of four different cups will keep water the hottest over 10 minutes. Students are also required to graph their results and write a conclusion.

This practical task requires students to plan and carry out a fair test to find out which paper type will soak up water the best.

Task: Match everyday terms about properties with their meanings. Use their understanding about properties of paper and their uses to justify appropriate questions to investigate. Assessment focus: asking questions about paper properties.

Students read some information about testing the absorbency of different papers. They outline two features that need to be kept the same if the tests were to be fair.

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

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

For this practical task students are assessed on their ability to record their observations of the decomposition of a cut slice of pumpkin over a two week time period.

Students are given information and a diagram about a drink bottle overflowing when it had been put into the freezer. Students are asked to explain why this happened and how they could prevent it.

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.

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

Task: Create, use and identify ‘rules’ based on observable and/or measurable physical properties of common plastics. Assessment focus: classifying & identifying.

For this practical task students use their knowledge about the properties of gases to explain their observations when they blow up a balloon that is inside a bottle and a balloon that is not inside a bottle.

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

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.

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 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 carry out three tests to find out if each element is a metal or non-metal.