PR-0552UK Primary Science - Book 2

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Float or sink? Forces ~ Activity 3 Objective • investigate how forces act on objects Working scientifically • Questioning • Observing • Predicting • Investigating and experimenting • Analysing (sorting and classifying) • Recording and communicating Designing and making • Exploring • Planning • Making Background information Objects that are light for their size will float and those heavy for their size will sink. For example – a plastic plate floats but a china plate the same size sinks. It depends on the density of the material it is made of. Before the lesson Materials needed • Bucket or large container of water; objects such as leaves, paper, sticks, counters, marbles, stones, coins, seeds, paperclips, fruit, tissues, cotton wool, corks, plastic blocks, aprons/shirts to protect clothes, modelling clay. Preparation • Divide class into groups. Use towels, plastic sheets etc. to cover tables. Distribute objects and a large container of water among groups. The lesson Stimulus • Encourage pupils to collect objects from home, school, indoors and outdoors to use for the lesson. What to do • In groups, pupils take turns to see which objects will sink or float. Ask them to make a prediction before trying each one. • Pupils complete Question 1 on the worksheet. • Gather pupils in one group. Discuss the results of the activity. Why did some objects sink quickly and others slowly? Did all big objects sink? Did all small objects float? Why? Why not? Pupils complete Question 2 on the worksheet. Some pupils may need guidance while writing. • Read the statement from Question 3. Ask the class if they think it is true. In groups, pupils use modelling clay to test the hypotheses. They record their results on the worksheet. Look at each group’s hollowed-out object. Which was the most successful at floating? Why? Discuss. After the lesson Answers • Teacher check. Additional activities • Look at pictures of boats and their hull. Discuss how an object made of metal can float. Viewing Sample Display ideas • Display pictures of the boats above. 76 <strong>PR</strong>IMARY SCIENCE ~ Prim-Ed Publishing ~ www.prim-ed.com
Forces – Activity 3 Float or sink? Draw five objects you are going to test. Complete the table. Sample Record what you found out about objects that float or sink. Some objects that sink can be made to float if they are hollowed out. Use modelling clay to see if this is true. Draw and write about what you discovered.Viewing www.prim-ed.com ~ <strong>PR</strong>IMARY SCIENCE ~ Prim-Ed Publishing 77
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OUTCOME LINKED PRIMARY Book 2 Mysel
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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
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What are insects? Parts of an insec
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Plants and animals ~ Activity 1 Wha
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Plants and animals ~ Activity 3 Des
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Plants and animals ~ Activity 5 Obs
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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
Page 75 and 76: 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: Forces ~ Activity 2 Down the ramp!
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
Page 129: Caring for my locality ~ Activity 9
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PR-0552UK Primary Science - Book 2

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