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Students answer two multiple-choice questions on pH.

Students decide if a statement is correct and then give a reason for their answer. Assessment focus: Using science ideas to explain a view.

Students write down three features of plastic that makes it useful in the home.

Students state if each of four jars containing different substances would sink or float.

Students explain two things a baby animal needs from its mother. Students then describe how a human changes as it grows up and becomes an adult.

Task: complete two multiple choice questions. Assessment focus: respiration of marine mammals and fish.

Task: Answer questions about making a bike go faster. Assessment focus: friction; gearing.

Task: Identify seasons from events described. Assessment focus: seasons.

Students answer three questions about the Hubble Space Telescope.

From a collection of familiar objects, students identify all those that can act as sources of light.

Students answer three questions about air pressure in balloons, why helium balloons float, and why a popped balloon makes a noise.

Task: Describe what happens to water on black plastic and explain why. Assessment focus: effect of colour on heat retention.

From a key of terms (heat, kinetic, light, potential and sound), students select the word which describes some common examples of energy change.

Students are asked to match six everyday objects to the main energy transformation that occurs in each of these objects.

For this task students look at a diagram showing household electrical wires and then answer some questions about these.

Students select from four pictures of laden trucks which is least likely to roll over when cornering, and explain their predictions. This resource assesses students' understanding of centre of gravity.

Students explain how the parts of a torch help it work.

Students are given some information about simple machines, and are asked to label the effort, load, and pivot on three examples of simple machines.

Students list four things that wouldn't work and the problems this would cause if there was a power cut to their home.

Students draw two wires to complete a simple circuit diagram from a battery to a bulb so that it shines.

Students are provided with a newspaper article titled 'Gentle quake the latest in swarm' and use this to answer three questions.

Task: Answer questions about energy transformations of a yoyo. Assessment focus: energy transformations.

Students answer questions about energy transformation.

Task: Describe how energy is transformed in three situations. Assessment focus: energy transformation.

Students classify the type of energy used in seven given examples as being either potential energy, kinetic energy, or radiant energy.