Natural Sciences and Technology Grade 5-B ... - Thunderbolt Kids
Natural Sciences and Technology Grade 5-B ... - Thunderbolt Kids Natural Sciences and Technology Grade 5-B ... - Thunderbolt Kids
Table of Contents Energy and Change and Systems and Control 4 1 Stored energy in fuels 4 1.1 What are fuels? . . . . . ... . . . . . . . . . . . . . . . . . . 4 1.2 Burning fuels . . . . . ... . . ... . . . . . . . . . . . . . . . 16 1.3 Safety with fire . . . . . ... . . . . . . . . . . . . . . . . . . 20 2 Energy and electricity 30 2.1 Cells and batteries . . . . . ... . . . . . . . . . . . . . . . . 30 2.2 Mains electricity . . . . . ... . . . . . . . . . . . . . . . . . . 34 2.3 Safety and electricity ... . . . . . . . . . . . . . . . . . . . 37 3 Energy and movement 42 3.1 Elastics and springs . . . . . ... . . . . . . . . . . . . . . . 42 4 Systems for moving things 52 4.1 Wheels and axles . . . . . ... . . . . . . . . . . . . . . . . . 52 Earth and Beyond and Systems and Control 70 1 Planet Earth 70 1.1 The Earth moves . . . . . ... . . . . . . . . . . . . . . . . . 70 2 Surface of the Earth 84 2.1 Rocks . . . . . ... ...... . . . . ... . . ...... . . . 84 2.2 Soil comes from rocks . . . . . . . . . . . . . . . . . . . . . . 94 2.3 Soil types . . ... . . . ... . . . . . . . ... . . ...... . 108 3 Sedimentary rocks 126 3.1 Formation of sedimentary rock . . .... . . ... . . . . . 126 3.2 Uses of sedimentary rock . . . . . ... . . . . . . . . . . . . 135 4 Fossils 140 4.1 Fossils in rock . . . . . ... . . . . . . . . . . . . . . . . . . . 140 4.2 Body and trace fossils . . . . . . . . . . . . . . . . . . . . . . 151 4.3 Importance of South African fossils . . . . . . . . . . . . . 153 5 Notes 164 1
- Page 1 and 2: Natural Sciences and Technology Gra
- Page 3 and 4: AUTHORS LIST This book was written
- Page 5 and 6: THE NATURAL SCIENCES AND TECHNOLOGY
- Page 7: Matter and Materials and Structures
- Page 13 and 14: This man has made afire to keep war
- Page 15 and 16: Food is fuel for the body A paran l
- Page 17 and 18: The nutritional information on amea
- Page 19 and 20: Some fuels are energy sources for e
- Page 21 and 22: • a small metal can (eg soup can)
- Page 23 and 24: 11. Repeat the experiment with two
- Page 25 and 26: Burning fuel requires some energy t
- Page 27 and 28: 6. Repeat the experiment with each
- Page 29 and 30: for keeping warm, cooking food or f
- Page 31 and 32: You should have some fire extinguis
- Page 33 and 34: Teacher's Note The following action
- Page 35 and 36: 2. What is needed for combustion to
- Page 37 and 38: Chapter 1. Stored energy in fuels 2
- Page 39 and 40: ACTIVITY: Investigating the source
- Page 41 and 42: 2. What happens when you disconnect
- Page 43 and 44: A power station. Power stations nee
- Page 45 and 46: QUESTIONS The above diagram shows h
- Page 47 and 48: Never use electrical appliances out
- Page 49 and 50: 3. How is abattery dierent to a cel
- Page 51 and 52: QUESTIONS Have you ever stretched a
- Page 53 and 54: 6. Use a rubber band to secure the
- Page 55 and 56: 2. Place a thinner rubber band acro
- Page 57 and 58: A slinky is aspring. 1 A slinky is
Table of Contents<br />
Energy <strong>and</strong> Change <strong>and</strong> Systems <strong>and</strong> Control 4<br />
1 Stored energy in fuels 4<br />
1.1 What are fuels? . . . . . ... . . . . . . . . . . . . . . . . . . 4<br />
1.2 Burning fuels . . . . . ... . . ... . . . . . . . . . . . . . . . 16<br />
1.3 Safety with fire . . . . . ... . . . . . . . . . . . . . . . . . . 20<br />
2 Energy <strong>and</strong> electricity 30<br />
2.1 Cells <strong>and</strong> batteries . . . . . ... . . . . . . . . . . . . . . . . 30<br />
2.2 Mains electricity . . . . . ... . . . . . . . . . . . . . . . . . . 34<br />
2.3 Safety <strong>and</strong> electricity ... . . . . . . . . . . . . . . . . . . . 37<br />
3 Energy <strong>and</strong> movement 42<br />
3.1 Elastics <strong>and</strong> springs . . . . . ... . . . . . . . . . . . . . . . 42<br />
4 Systems for moving things 52<br />
4.1 Wheels <strong>and</strong> axles . . . . . ... . . . . . . . . . . . . . . . . . 52<br />
Earth <strong>and</strong> Beyond <strong>and</strong> Systems <strong>and</strong> Control 70<br />
1 Planet Earth 70<br />
1.1 The Earth moves . . . . . ... . . . . . . . . . . . . . . . . . 70<br />
2 Surface of the Earth 84<br />
2.1 Rocks . . . . . ... ...... . . . . ... . . ...... . . . 84<br />
2.2 Soil comes from rocks . . . . . . . . . . . . . . . . . . . . . . 94<br />
2.3 Soil types . . ... . . . ... . . . . . . . ... . . ...... . 108<br />
3 Sedimentary rocks 126<br />
3.1 Formation of sedimentary rock . . .... . . ... . . . . . 126<br />
3.2 Uses of sedimentary rock . . . . . ... . . . . . . . . . . . . 135<br />
4 Fossils 140<br />
4.1 Fossils in rock . . . . . ... . . . . . . . . . . . . . . . . . . . 140<br />
4.2 Body <strong>and</strong> trace fossils . . . . . . . . . . . . . . . . . . . . . . 151<br />
4.3 Importance of South African fossils . . . . . . . . . . . . . 153<br />
5 Notes 164<br />
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