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Natural Sciences and Technology Gra
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AUTHORS LIST This book was written
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THE NATURAL SCIENCES AND TECHNOLOGY
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Matter and Materials and Structures
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1 Stored energy in fuels 4 KEY QUES
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VISIT How fossil fuels are made. go
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So we can say that food is the fuel
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MATERIALS: • various packaging fo
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Coal is not only burnt in our homes
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2. Remove both ends of the large ca
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QUESTIONS: 1. Which fuel contained
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INVESTIGATION: What happens when af
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VISIT Burning substances in air and
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3. Write a description next to each
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3. What causes of fire can you iden
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3. Some points to think about when
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1. Describe the relationship betwee
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2 Energy and electricity 30 KEY QUE
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When the electrical energy is trans
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A car needs energy to start its eng
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Huge pylons carrying the transmissi
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ACTIVITY: 10 Safety tips for electr
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KEY CONCEPTS Never stick a metal kn
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3 Energy and movement 42 KEY QUESTI
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2. Tie another elastic band around
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QUESTIONS Look up adefinition for p
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5. Place it in the water, and let i
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QUESTIONS Use your knowledge of spr
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4 Systems for moving things 52 KEY
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Teacher's Note You can demonstrate
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QUESTIONS Label the two wheels and
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4. Place a few marbles or some othe
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6. Repeat this for the other 2wheel
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The board makes bearings for the ax
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INSTRUCTIONS: Things you can use fo
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REVISION: 1. List four dierent vehi
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1 Planet Earth 70 KEY QUESTIONS •
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• The Earth spins right around in
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3. Was it daytime in Saudi Arabia?
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VISIT Short video showing the sun,
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The planets move in orbits around t
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MATERIALS: • 100m heavy string
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Teacher's Note Make sure to point o
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2 Surface of the Earth 84 KEY QUEST
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QUESTIONS: 1. What is under the flo
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Imagine we could cut aslice out of
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QUESTIONS 1. If you dig ahole in th
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Teacher's Note Iron melts at those
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The hole will come to of the other
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Look at the place where the water h
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VISIT Rocks erode to form soil (vid
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ACTIVITY: Make a model of acid wate
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ACTIVITY: Look at dierent kinds of
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MATERIALS: • 3 big cool drink bot
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In the beginning, you might think t
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The topsoil has gone from this land
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- Page 120 and 121: QUESTIONS 1. Can you make pots with
- Page 122 and 123: VISIT Interesting website about soi
- Page 124 and 125: QUESTIONS: 1. Are the drops on the
- Page 126 and 127: Set up the soils as you see in the
- Page 128 and 129: Which soil type do plants grow best
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- Page 132 and 133: Answer: Crust, mantle, core. 2. Wha
- Page 134 and 135: 3 Sedimentary rocks VISIT Dierent r
- Page 136 and 137: Sediments When the sand grains coll
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- Page 140 and 141: Look at the layers in the sedimenta
- Page 142 and 143: This is how the mountains look now.
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- Page 146 and 147: Cement is also made from shale. The
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- Page 150 and 151: VISIT When a T-Rex attacks! (video)
- Page 152 and 153: VISIT How are fossils formed? goo.g
- Page 154 and 155: Teacher's Note Of course, it's much
- Page 156 and 157: Teacher's Note Note that the mould
- Page 158 and 159: There was a flood and the river ros
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- Page 162 and 163: Do you know where this is in South
- Page 164 and 165: VISIT Finding the coelacanth (video
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- Page 170 and 171: REVISION: 1. Are animal fossils mad
- Page 172 and 173: 5 Notes 164 Chapter 1 Stored energy