PR-0552UK Primary Science - Book 2

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Changing by heating Materials and change ~ Activity 1 Objective • explore the effects of heating and cooling on a range of liquids and solids Working scientifically • Questioning • Observing • Predicting • Investigating and experimenting • Recording and communicating Designing and making • Exploring Background information Heating a substance by boiling, frying, toasting etc. causes a chemical reaction to occur. The substance changes from one state to another. For example, when butter is heated it becomes a liquid. Some substances, such as butter, return to their original state when cooled. Others, such as bread or eggs, will remain in their new state. Before the lesson Materials needed • Stimulus: popcorn, butter, electric frying pan, marshmallow, fork, candle flame or oven hotplate. • Lesson: eggs, saucepan, knife, uncooked potato chip, oil for frying, frying pan, slice of bread, toaster, butter, oven with hotplates. Preparation • Ensure all materials are on hand. Pupils should be able to have a clear view of what is happening without being too near heating elements. The lesson Stimulus • Heat popcorn or toast marshmallows and allow pupils to eat a sample. Discuss what happened to the popcorn or marshmallow – colour, size, shape, smell etc. What to do • Allow selected pupils to help you with each experiment while others observe. • Before each experiment, discuss and record descriptions of the egg, butter, potato and bread. (Crack the egg to observe what it looks like inside before heating.) • After heating (and cooling) each substance, discuss and record new observations. (Peel and cut egg in half so pupils see it is hard-boiled.) • Pupils complete the copymaster. After the lesson Answers • (a) hard-boiled (b) toast (c) chip (d) melted Additional activities • Discuss, then write and draw about the dangers involved in and rules concerning the heating of substances. • Participate in cooking activities such as baking a cake and observe and record how the cake etc. changed during the cooking process. Viewing Sample Display ideas • Pupils can find or draw pictures to add to a chart displaying what substances looked like before and after heating; for example, water – steam from a kettle or pot; raw sausage – barbecued sausage, plus those used on the copymaster. 90 <strong>PR</strong>IMARY SCIENCE ~ Prim-Ed Publishing ~ www.prim-ed.com
Materials and change ~ Activity 1 Changing by heating When we heat a substance it changes from the way it looked before. • Draw and write about what each of these substances looked like when it had been heated. • Use these words to complete each sentence. chip toast melted hard-boiled (a) An egg The egg became . (b) A slice of bread. The bread became . (c) Viewing Sample (d) A slice of potato The potato became a . Butter The butter . www.prim-ed.com ~ <strong>PR</strong>IMARY SCIENCE ~ Prim-Ed Publishing 91
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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
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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 2 Par
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Plants and animals ~ Activity 3 Des
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Plants and animals ~ Activity 4 Dra
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Plants and animals ~ Activity 5 Obs
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Plants and animals ~ Activity 6 Dif
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Plants and animals ~ Activity 7 Noc
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Plants and animals ~ Activity 8 Foo
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Plants and animals ~ Activity 9 Wha
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Plants and animals - Activity 10 Li
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Plants and animals - Activity 11 Li
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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 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: Changing by heating Maintaining tem
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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