PR-0552UK Primary Science - Book 2

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Magnetic problems Magnetism and electricity ~ Activity 2 Objectives • investigate that magnets attract magnetic materials, such as iron and steel • investigate that magnets attract certain materials through other materials Working scientifically • Questioning • Observing • Predicting • Investigating and experimenting • Recording and communicating Designing and making • Exploring • Planning • Evaluating Background information Magnets will attract objects through some materials, while other materials will form a barrier. Magnetism will pass through materials that are not magnetic. When pupils are allowed to experiment with magnets and objects they soon discover they can make objects move without actually touching them. A magnet can move the paperclip from the water by sliding the magnet up the outside of the jar. As the paperclip is magnetically attracted, it will follow. Window cleaners use magnets on either side of large or difficult windows (like aquariums or high rise buildings) to clean them. Before the lesson Materials needed • Problem 1 – paper plates, magnet, paperclip. • Problem 2 – narrow jar, paperclips, paper towels, magnet, water. Preparation • Organise the class into small groups. The lesson Stimulus • Working with groups and the materials supplied, pupils are to plan and design ways of solving each problem using their prior knowledge of magnets and their properties. What to do • Allow pupils time to study the problem and the materials given. • Discuss possible ways to solve the problems and test the best idea. • Pupils record their success rate and what may be needed to improve the experiment. • They attempt the next problem using the same group strategy and discuss possibilities. • The pupils test an idea and record the results. • Discuss the differences in the way the groups approached the problems. Are there ways to improve the methods used? What worked? Why? What didn’t work? • Discuss with the pupils how many paper plates can be put between the paperclip and magnet before the magnetic attraction stops. How many paperclips can be moved around or out of the jar of water? After the lesson Answers • Answers will vary. Additional activities • Can the pupils think of other problems to solve using magnets? How could it be done? For example, an object buried in the sand; moving an object through water. • Test a variety of materials to see what a magnetic force will pass through. Use cloth, cardboard, paper, aluminium foil, glass, rice etc. Experiment by placing different layers over a magnet to see which forms a barrier and which still allows magnetic forces to pass through. Which materials stopped a magnet from working? Make a list. Viewing Sample Display ideas • Make a ‘challenge’ poster that could be placed around the school. Write questions on it such as ‘How can you make a paperclip “walk” around a paper plate without touching it?’ Pupils who think they know the solution must find a pupil from the class and explain it to him/her. 64 <strong>PR</strong>IMARY SCIENCE ~ Prim-Ed Publishing ~ www.prim-ed.com
Magnetism and electricity ~ Activity 2 Magnetic problems Problem 1 How can you make a paperclip ‘walk’ around a paper plate without touching it? Problem 2 How can you remove a metal object from a narrow jar of water without touching it? Viewing Sample www.prim-ed.com ~ <strong>PR</strong>IMARY SCIENCE ~ Prim-Ed Publishing 65
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OUTCOME LINKED PRIMARY Book 2 Mysel
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Teacher information................
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Teacher information The pupil pages
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Differentiating activities Meeting
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Essential science resources Below i
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Assessment proforma Name Class Term
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Assessment proforma - Designing and
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About me We are all different Chang
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Myself ~ Activity 1 About me (a) Dr
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Myself ~ Activity 2 We are all diff
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Myself - Activity 3 Changes As we g
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Myself ~ Activity 4 A need or a wan
Page 25 and 26: What are insects? Parts of an insec
Page 27 and 28: Plants and animals ~ Activity 1 Wha
Page 29 and 30: Plants and animals ~ Activity 2 Par
Page 31 and 32: Plants and animals ~ Activity 3 Des
Page 33 and 34: Plants and animals ~ Activity 4 Dra
Page 35 and 36: Plants and animals ~ Activity 5 Obs
Page 37 and 38: Plants and animals ~ Activity 6 Dif
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Page 41 and 42: Plants and animals ~ Activity 8 Foo
Page 43 and 44: Plants and animals ~ Activity 9 Wha
Page 45 and 46: Plants and animals - Activity 10 Li
Page 47 and 48: Plants and animals - Activity 11 Li
Page 49 and 50: Making shadows Measuring shadows Sh
Page 51 and 52: Light ~ Activity 1 Draw a picture t
Page 53 and 54: Light ~ Activity 2 Measuring shadow
Page 55 and 56: Light ~ Activity 3 Shadow clock Fol
Page 57 and 58: Light ~ Activity 4 The torch experi
Page 59 and 60: Light ~ Activity 5 Sun facts Read t
Page 61 and 62: Sound Making sounds banging blowing
Page 63 and 64: Sound ~ Activity 1 Sound Sound Circ
Page 65 and 66: Sound ~ Activity 2 Use different ma
Page 67 and 68: Heat Measuring temperature applianc
Page 69 and 70: Heat ~ Activity 1 Describe how you
Page 71 and 72: Heat ~ Activity 2 Measuring tempera
Page 73 and 74: Magnetic attraction Magnetic proble
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Page 81 and 82: Magnetism and electricity ~ Activit
Page 83 and 84: Push or pull? Down the ramp! Float
Page 85 and 86: Forces ~ Activity 1 Push or pull? A
Page 87 and 88: Forces ~ Activity 2 Down the ramp!
Page 89 and 90: Forces - Activity 3 Float or sink?
Page 91 and 92: Materials in the classroom Sorting
Page 93 and 94: Properties and characteristics of m
Page 101 and 102: Changing by heating Maintaining tem
Page 103 and 104: Materials and change ~ Activity 1 C
Page 105 and 106: Materials and change ~ Activity 2 M
Page 107 and 108: Materials and change ~ Activity 3 M
Page 109 and 110: Materials and change ~ Activity 4 W
Page 111 and 112: Natural or built? Minibeast hunt Lo
Page 113 and 114: Caring for my locality ~ Activity 1
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Caring for my locality ~ Activity 8
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Caring for my locality ~ Activity 9
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PR-0552UK Primary Science - Book 2

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