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Students complete tables of energy use.

Task: Predict whether given objects will float, investigate, then record and explain results. Assessment focus: flotation.

Task: Use a diagram to match shadows to a time of day. Assessment focus: shadows.

Task: Identify the position of the sun and the time of day when the shadows shown is formed. Assessment focus: shadows.

Task: Explain how to use the magnet to remove a drawing pin out of a glass of water without putting the magnet in the glass, touching the glass with hands, or spilling the water. Assessment focus: using knowledge of magnetism to solve a problem.

This practical task requires students to plan a method to determine which magnet is the strongest. Students carry out their plan, record results and write a conclusion.

For this practical task students make observations about the effect of coloured lights on different coloured objects. Students then draw some conclusions about their findings.

Task: Answer a multiple choice question about the material attracted to magnets, select which magnet of four is strongest, and give a reason for choice. Assessment focus: magnetism.

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.

Students first do the science activity Throwing Balloons - investigation (PW2548) where they predict, observe, and explain what will happen when a balloon containing another balloon filled with water is thrown. Then the students do this writing task where they describe the balloon and what happened when it was thrown, and explain why they think it moved the way it did. Six annotated exemplars of student scripts (writing) are included under the "Working with Students" tab.

Task: Predict, observe and explain what will happen when a balloon containing another balloon filled with water is thrown. Assessment focus: making and explaining predictions and observations.