Natural Sciences and Technology Grade 6-A - Thunderbolt Kids

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Table of Contents Life and Living and Processing 4 1 Photosynthesis 4 1.1 Plants and food ...... . . . . . . . . . . ... ....... .... 4 1.2 Food from photosynthesis ...... . . . . . . . . . ...... . 9 1.3 Plants and air . ...... . . . . . . . ............. .... 15 2 Nutrients in food 22 2.1 Food groups . ...... . . . . . . . ............. .... 22 3 Nutrition 36 3.1 A balanced diet ...... . . . . . . . . . . ... ....... .... 36 3.2 Diseases caused by an unhealthy diet . . . . . . . . . . . . . . . 45 4 Food processing 54 4.1 Why do we need food processing? . . . . . . . . . . . . . .... 54 4.2 How are foods processed? ...... . . . . . . . . . ...... . 64 5 Ecosystems and food webs 78 5.1 Dierent ecosystems ....... . . . . . . . ....... . ... . 78 5.2 Living and non-living things in ecosystems . . . . . . . . . . . . 82 5.3 Food webs ...... . . . . . . . . . . ... . . ..... ...... . 86 Matter and Materials and Processing 104 1 Solids, liquids and gases 104 1.1 Arrangement of particles ....... . . . . . . . ......... 104 2 Mixtures 118 2.1 Mixtures of materials ....... . . . . . . . ....... . ... . 118 3 Solutions as special mixtures 134 3.1 Solutions .... . . . . . . . . . . . ... . ....... ........ 134 3.2 Soluble substances ....... . . . . . . . ............. 141 3.3 Saturated solutions ....... . . . . . . . ............. 145 4 Dissolving 156 4.1 What is dissolving? ....... . . . . . . . ............. 156 4.2 Rates of dissolving ....... . . . . . . . ............. 159 5 Mixtures and water resources 174 5.1 Water pollution ...... . . . . . . . . . . ... ....... .... 174 5.2 Importance of wetlands . ..... . . . . . . . . . ......... 177 6 Processes to purify water 188 1 6.1 Clean water . ..... . . . . . . . . . . ... ....... ...... 188 7 Notes 204
Page 1 and 2: Natural Sciences and Technology Gra
Page 3 and 4: AUTHORS LIST This book was written
Page 5 and 6: Welcome to Grade 6 and to Natural S
Page 7 and 8: Hey! My name is Tom. I have two pla
Page 9: Hello! My name is Sophie. One of my
Page 15 and 16: Scientists have found out exactly h
Page 17 and 18: - stem (sugar cane) - seeds (wheat
Page 19 and 20: 2. Design a poster for your Gr 4fri
Page 21 and 22: Sunflower seeds. Lettuce. Sugar can
Page 23 and 24: QUESTIONS: 1. Was it easy to distin
Page 25 and 26: QUESTIONS: 1. Which test do you thi
Page 27 and 28: QUESTIONS: 1. Make a list of living
Page 29 and 30: REVISION: 1. List the four things t
Page 31 and 32: 7. What do plants store glucose as?
Page 33 and 34: Examples of the foods in the food g
Page 35 and 36: 3. Fats and oils: Meat. Lentils. Al
Page 37 and 38: Name of vitamin Sources Function Vi
Page 39 and 40: Very often food manufacturers add d
Page 41 and 42: The natural foods contained a mixtu
Page 43 and 44: KEY CONCEPTS • Food groups: - foo
Page 45 and 46: Name of vitamin Vitamin A Vitamin C
Page 47 and 48: • The food in the middle of the p
Page 49 and 50: Tuesday Wednesday Thursday Friday t
Page 51 and 52: 4. What important food group is Raj
Page 53 and 54: Breakfast: Option 1: Fruit loops Op
Page 55 and 56: Supper: Option 1: Chicken pieces Op
Page 57 and 58: Causes of apoor diet There are many
Page 59 and 60: • Diabetes: This is adisease that
Page 61 and 62:
3. On your poster, you must include
Page 63 and 64:
4. Write a paragraph where you expl
Page 65 and 66:
ACTIVITY: A REALLY old role play Wo
Page 67 and 68:
2. Can you predict how the locals w
Page 69 and 70:
Benefits of food processing Food pr
Page 71 and 72:
Food Reason for being processed Raw
Page 73 and 74:
ACTIVITY: Class discussion INSTRUCT
Page 75 and 76:
Highly processed foods: • Highly
Page 77 and 78:
preserve it, just like people did 3
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ACTIVITY: Comparing traditional and
Page 81 and 82:
5. Use the space below to draw a fl
Page 83 and 84:
KEY CONCEPTS • Food is processed
Page 85 and 86:
5. A farmer wants to export some gr
Page 87 and 88:
I really enjoyed that, especially l
Page 89 and 90:
• arctic and alpine tundra are in
Page 91 and 92:
A unique South African ecosystem So
Page 93 and 94:
A healthy ecosystem is one in which
Page 95 and 96:
In this man-made forest, there is n
Page 97 and 98:
• insectivores only eat ... can y
Page 99 and 100:
A food web in asavanna. There are a
Page 101 and 102:
• Forest ecosystem: grass, small
Page 103 and 104:
7. When marking out your ecosystem
Page 105 and 106:
2: 3: Animal species: 1: 2: 3: Chap
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interdependent and they are connect
Page 109 and 110:
REVISION: 1. Provide a definition f
Page 111:
10. What choices do you need to mak
Page 115 and 116:
Did you know that all matter is act
Page 117 and 118:
We would see that the particles in
Page 119 and 120:
3. If you should come into contact,
Page 121 and 122:
In the next table there are 3 pictu
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2. Did they behave dierently? 3. In
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7. What do we call the process when
Page 127 and 128:
We have learnt that materials exist
Page 129 and 130:
A mixture of dierent coloured jelly
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3. Separate the mixture into a pile
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2. Draw a picture of the mixture. 3
Page 135 and 136:
3. Can you separate the mixture int
Page 137 and 138:
INSTRUCTIONS: 1. Place 10 scoops of
Page 139 and 140:
Picture of mixture INSTRUCTIONS (Pa
Page 141 and 142:
REVISION: 1. What is amixture? 2. L
Page 143 and 144:
Now that we know more about mixture
Page 145 and 146:
ACTIVITY: When is amixture also aso
Page 147 and 148:
What is asolution? When two substan
Page 149 and 150:
Wait! How is it possible for one su
Page 151 and 152:
4. What do you think happened to th
Page 153 and 154:
In the previous chapter, we saw how
Page 155 and 156:
4. Which method do you think works
Page 157 and 158:
3. Complete the following sentences
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dissolved limestone can crystallise
Page 161 and 162:
KEY CONCEPTS • A solution is aspe
Page 163 and 164:
4. What was the mixture of sugar an
Page 165 and 166:
It was quite dicult in the beginnin
Page 167 and 168:
changes are called. QUESTIONS: 1. W
Page 169 and 170:
4. What do we call it when we have
Page 171 and 172:
In the first investigation, we will
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3. What did we change in this inves
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RESULTS: The eect of grain size on
Page 177 and 178:
INVESTIGATION: Does stirring increa
Page 179 and 180:
3. What did we change in this inves
Page 181 and 182:
REVISION: 1. What are the 3factors
Page 183 and 184:
We have learnt a lot about solution
Page 185 and 186:
ACTIVITY: Thinking about pollution
Page 187 and 188:
8. How do you think oil ends up in
Page 189 and 190:
Wetlands are not necessarily wet th
Page 191 and 192:
INSTRUCTIONS: 1. Drill ahole in the
Page 193 and 194:
QUESTIONS Do you remember studying
Page 195 and 196:
REVISION: 1. Look at the picture be
Page 197 and 198:
Water is very important for us and
Page 199 and 200:
QUESTIONS 1. What does 'clean water
Page 201 and 202:
ACTIVITY: Cleaning water in astill
Page 203 and 204:
Filtering is agood way of removing
Page 205 and 206:
2. What size and shape will your fi
Page 207 and 208:
MAKE: Now that you have a design, i
Page 209 and 210:
How is water cleaned by municipalit
Page 211 and 212:
STEP 3: AERATION The raw water now
Page 213 and 214:
6. Name the 5steps in the water tre
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Natural Sciences and Technology Grade 6-A - Thunderbolt Kids

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