PR-0552UK Primary Science - Book 2

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Measuring shadows Light ~ Activity 2 Objectives • recognise that light comes from different sources • recognise that light is needed in order to see Working scientifically • Questioning • Observing • Predicting • Investigating and experimenting • Estimating and measuring • Analysing (interpreting) • Recording and communicating Designing and making • Exploring • Making Background information Giant shadows are cast by the moon and the Earth. When the moon passes between the sun and the Earth, its shadow falls on parts of the Earth, creating darkness on that part during the day. This is known as an eclipse of the sun. If the Earth passes between the sun and the moon, the Earth casts a shadow on the moon and it becomes dark. This is known as an eclipse of the moon. Before the lesson Materials needed • Sticks, chalk (2 colours), modelling clay, tape measure, chart or book showing pictures of eclipses of the sun and moon. Preparation • Organise groups and materials for each group. The lesson Stimulus • Show photographs of eclipses of the sun and the moon. Discuss the enormous shadows that are cast by the Earth and the moon during an eclipse. What to do • Divide pupils into small groups of three or four. • Working in groups, tell the pupils they are going to predict and measure the shadow of a stick throughout the day. • Pupils place a stick into a lump of modelling clay. • Pupils place their stick in a sunny spot on the ground where the shadow can be traced. • Record the shadow by tracing it with chalk and measure the length of the shadow. With the other coloured chalk predict the position and the length of the next shadow in 30 minutes’ time. Continue to do this throughout the day. • Pupils present their results in a bar graph on their worksheet. (Teachers will need to direct pupils to complete the vertical axis according to the longest shadow recorded and to fill in the times of the day on the horizontal axis.) • Discuss the results. After the lesson Answers • Pupils’ results should show the shadows are longest in the early morning and late afternoon and shortest at noon. The length of the shadow changes as the sun appears at different angles in the sky. At noon, when the sun is closer to directly overhead, there is very little shadow. The position of the sun changes as the Earth rotates on its axis. Viewing Sample Additional activities • Pupils think of other ways to record the position of the sun. Display ideas • Cut out graphs and glue onto card. Pupils record their findings below and display on the wall. 40 <strong>PR</strong>IMARY SCIENCE ~ Prim-Ed Publishing ~ www.prim-ed.com
Light ~ Activity 2 Measuring shadows • Place your stick in a sunny spot. • Trace the shadow with chalk every hour. • Measure the shadows. Record your results below. Graph your results below. Viewing Sample www.prim-ed.com ~ <strong>PR</strong>IMARY SCIENCE ~ Prim-Ed Publishing 41
Page 1 and 2: OUTCOME LINKED PRIMARY Book 2 Mysel
Page 3 and 4: Teacher information................
Page 5 and 6: Teacher information The pupil pages
Page 7 and 8: Differentiating activities Meeting
Page 9 and 10: Essential science resources Below i
Page 11 and 12: Assessment proforma Name Class Term
Page 13 and 14: Assessment proforma - Designing and
Page 15 and 16: About me We are all different Chang
Page 17 and 18: Myself ~ Activity 1 About me (a) Dr
Page 19 and 20: Myself ~ Activity 2 We are all diff
Page 21 and 22: Myself - Activity 3 Changes As we g
Page 23 and 24: 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
Page 39 and 40: Plants and animals ~ Activity 7 Noc
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: Light ~ Activity 1 Draw a picture t
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 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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PR-0552UK Primary Science - Book 2

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