Table of Contents

Acknowledgements iv Student reflection grid v Chapter 1 ? Think quest 1 Worksheet 1.1 Layers of learning 1 Worksheet 1.2 Science and ethics 3 Worksheet 1.3 Difficult decisions 5 Worksheet 1.4 Think quest: Summary 7 Chapter 2 ? Getting into genes 9 Worksheet 2.1 Genes and chromosomes 9 Worksheet 2.2 DNA 11 Worksheet 2.3 Mitosis 13 Worksheet 2.4 Meiosis 15 Worksheet 2.5 Dominant and recessive 16 Worksheet 2.6 Mendel?s experiments 17 Worksheet 2.7 Pedigrees 18 Worksheet 2.8 Getting into genes: Puzzle 19 Worksheet 2.9 Getting into genes: Summary 20 Chapter 3 ? Evolution 21 Worksheet 3.1 Struggling to survive 21 Worksheet 3.2 Isolation and new species 23 Worksheet 3.3 Geological time 25 Worksheet 3.4 Fossils 27 Worksheet 3.5 Ages of fossils 29 Worksheet 3.6 Evolution: Puzzle 31 Worksheet 3.7 Evolution: Summary 32 Chapter 4 ? Chemical patterns 33 Worksheet 4.1 Periodic table 33 Worksheet 4.2 Elements and atomic numbers 35 Worksheet 4.3 Electron shells 36 Worksheet 4.4 The structure of the atom 37 Worksheet 4.5 Ionic bonding 39 Worksheet 4.6 Writing formulae for ionic compounds 40 Worksheet 4.7 Electron configurations 41 Worksheet 4.8 Covalent bonding 42 Worksheet 4.9 Chemical formulae 43 Worksheet 4.10 Chemical patterns: Summary 44 Chapter 5 ? Chemical reactions 45 Worksheet 5.1 Chemical equations 45 Worksheet 5.2 Balancing chemical equations 46 Worksheet 5.3 A world of reactions 47 Worksheet 5.4 Precipitation 48 Worksheet 5.5 Metal displacement 49 Worksheet 5.6 Corrosion and combustion 50 Worksheet 5.7 Speeding up reactions 51 Worksheet 5.8 Chemical reactions: Summary 52 Chapter 6 ? The mysterious universe 53 Worksheet 6.1 Observing stars 53 Worksheet 6.2 The sun and nuclear fusion 55 Worksheet 6.3 The brightness of stars 56 Worksheet 6.4 Star life cycles 57 Worksheet 6.5 The expanding universe 59 Worksheet 6.6 The big bang 61 Worksheet 6.7 Telescopes 63 Worksheet 6.8 The mysterious universe: Summary 64 Chapter 7 ? Global systems 65 Worksheet 7.1 Nature?s time machine 65 Worksheet 7.2 Cycles in nature 67 Worksheet 7.3 Ozone layer 68 Worksheet 7.4 Global warming 69 Worksheet 7.5 Slowing global warming ? alternatives 71 Worksheet 7.6 A dome away from home 73 Chapter 8 ? Forces, energy and motion 77 Worksheet 8.1 Speed and velocity 77 Worksheet 8.2 Ticker tapes 78 Worksheet 8.3 Acceleration 79 Worksheet 8.4 Inertia and motion 80 Worksheet 8.5 Force and gravity 81 Worksheet 8.6 Newton?s Second Law 82 Worksheet 8.7 Newton?s Third Law 83 Worksheet 8.8 Forces, energy and motion: Summary 84 Chapter 9 ? Science quests 85 Worksheet 9.1 Inventions and innovations 85 Worksheet 9.2 Science under scrutiny 87 Worksheet 9.3 Great ideas and lucky breaks! 89 Worksheet 9.4 Killer-bot 91 Worksheet 9.5 Big picture science 92 G