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
QUESTIONS Use your knowledge of springs to explain how apogo stick works. Your answer must include the words compress, stored energy and movement. When a child jumps on apogo stick he compresses the spring (squashes it). The spring then has stored energy and releases back up and pushes the child up again. The stored energy from the compression is released and turned into a movement. KEY CONCEPTS • Stored energy can be changed into movement energy • Energy can be stored in astretched or twisted elastic • Energy can be stored in compressed or stretched springs REVISION: 1. A jack in the box is afun toy. An object jumps out of abox when the lid is opened. Explain how it works by using a spring. A compressed spring is under the object. When the lid is opened, the spring is released and the stored energy is changed into movement energy of the object. 2. A stretched elastic band is an example of stored/released energy? stored energy 3. What else, besides stretching, can you do to an elastic band to give it stored energy? Twist it. 4. Think of some examples which you have experienced that use springs to store energy and write them down below. 50 Energy and Change
Chapter 3. Energy and movement 51
- Page 7: Matter and Materials and Structures
- Page 12 and 13: 1 Stored energy in fuels 4 KEY QUES
- Page 14 and 15: VISIT How fossil fuels are made. go
- Page 16 and 17: So we can say that food is the fuel
- Page 18 and 19: MATERIALS: • various packaging fo
- Page 20 and 21: Coal is not only burnt in our homes
- Page 22 and 23: 2. Remove both ends of the large ca
- Page 24 and 25: QUESTIONS: 1. Which fuel contained
- Page 26 and 27: INVESTIGATION: What happens when af
- Page 28 and 29: VISIT Burning substances in air and
- Page 30 and 31: 3. Write a description next to each
- Page 32 and 33: 3. What causes of fire can you iden
- Page 34 and 35: 3. Some points to think about when
- Page 36 and 37: 1. Describe the relationship betwee
- Page 38 and 39: 2 Energy and electricity 30 KEY QUE
- Page 40 and 41: When the electrical energy is trans
- Page 42 and 43: A car needs energy to start its eng
- Page 44 and 45: Huge pylons carrying the transmissi
- Page 46 and 47: ACTIVITY: 10 Safety tips for electr
- Page 48 and 49: KEY CONCEPTS Never stick a metal kn
- Page 50 and 51: 3 Energy and movement 42 KEY QUESTI
- Page 52 and 53: 2. Tie another elastic band around
- Page 54 and 55: QUESTIONS Look up adefinition for p
- Page 56 and 57: 5. Place it in the water, and let i
- Page 60 and 61: 4 Systems for moving things 52 KEY
- Page 62 and 63: Teacher's Note You can demonstrate
- Page 64 and 65: QUESTIONS Label the two wheels and
- Page 66 and 67: 4. Place a few marbles or some othe
- Page 68 and 69: 6. Repeat this for the other 2wheel
- Page 70 and 71: The board makes bearings for the ax
- Page 72 and 73: INSTRUCTIONS: Things you can use fo
- Page 74 and 75: REVISION: 1. List four dierent vehi
- Page 78 and 79: 1 Planet Earth 70 KEY QUESTIONS •
- Page 80 and 81: • The Earth spins right around in
- Page 82 and 83: 3. Was it daytime in Saudi Arabia?
- Page 84 and 85: VISIT Short video showing the sun,
- Page 86 and 87: The planets move in orbits around t
- Page 88 and 89: MATERIALS: • 100m heavy string
- Page 90 and 91: Teacher's Note Make sure to point o
- Page 92 and 93: 2 Surface of the Earth 84 KEY QUEST
- Page 94 and 95: QUESTIONS: 1. What is under the flo
- Page 96 and 97: Imagine we could cut aslice out of
- Page 98 and 99: QUESTIONS 1. If you dig ahole in th
- Page 100 and 101: Teacher's Note Iron melts at those
- Page 102 and 103: The hole will come to of the other
- Page 104 and 105: Look at the place where the water h
- Page 106 and 107: VISIT Rocks erode to form soil (vid
Chapter 3. Energy <strong>and</strong> movement<br />
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