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On a diagram students indicate how a cliff face might look different in 100 years from now, and explain the probable cause of this.

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.

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

Students are given an outline of an investigation on heat loss from two different shaped objects (a cube and a sphere). They answer questions on variable control, repeat trialling, and they then graph data from this investigation.

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 follow instructions for making a 'green fridge' to determine its efficiency. Students collect and record data from their investigation and answer questions.

For this practical students make observations about dissolving, and plan and carry out an investigation to find out what makes sugar dissolve more quickly.

Task: Make careful observations of objects in a picture to assess the size of one of the objects.

Task: Students use recent information obtained from space exploration to show how and why beliefs have changed over time. Assessment focus: interpreting information about the provisional nature of science.

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

Task: Answer two multiple choice questions. Assessment focus: managing variables.

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

This resource assesses students' understanding of erosion. Students order a set of diagrams showing the process of erosion in a river and write an explanation of how cliff erosion occurs by the sea.

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.

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.

For this practical task students are assessed on their understanding of the life cycle of a butterfly by putting pictures (of eggs, caterpillar, pupa, emerging butterfly, and butterfly) into the correct sequential order and answering some questions.

Task: Students apply both their knowledge of the functions of roots and information from a model to explain why care is needed when transplanting trees. Assessment focus: interpreting diagrams.

Task: Plan a fair test to see which of two solar showers of different colours heats up more. Assessment focus: controlling variables.

For this assessment students read a paragraph of information about the stars. They use this to complete a table that summarises all this information.

Task: Identify patterns in a table and suggest ways to make a toy travel further. Assessment focus: interpreting data; energy; forces.

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

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

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

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

Task: Identify which car will be coolest and explain why. Assessment focus: air currents.