Natural Sciences and Technology Grade 6-A - Thunderbolt Kids
Natural Sciences and Technology Grade 6-A - Thunderbolt Kids 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
Table of Contents<br />
Life <strong>and</strong> Living <strong>and</strong> Processing 4<br />
1 Photosynthesis 4<br />
1.1 Plants <strong>and</strong> food ...... . . . . . . . . . . ... ....... .... 4<br />
1.2 Food from photosynthesis ...... . . . . . . . . . ...... . 9<br />
1.3 Plants <strong>and</strong> air . ...... . . . . . . . ............. .... 15<br />
2 Nutrients in food 22<br />
2.1 Food groups . ...... . . . . . . . ............. .... 22<br />
3 Nutrition 36<br />
3.1 A balanced diet ...... . . . . . . . . . . ... ....... .... 36<br />
3.2 Diseases caused by an unhealthy diet . . . . . . . . . . . . . . . 45<br />
4 Food processing 54<br />
4.1 Why do we need food processing? . . . . . . . . . . . . . .... 54<br />
4.2 How are foods processed? ...... . . . . . . . . . ...... . 64<br />
5 Ecosystems <strong>and</strong> food webs 78<br />
5.1 Dierent ecosystems ....... . . . . . . . ....... . ... . 78<br />
5.2 Living <strong>and</strong> non-living things in ecosystems . . . . . . . . . . . . 82<br />
5.3 Food webs ...... . . . . . . . . . . ... . . ..... ...... . 86<br />
Matter <strong>and</strong> Materials <strong>and</strong> Processing 104<br />
1 Solids, liquids <strong>and</strong> gases 104<br />
1.1 Arrangement of particles ....... . . . . . . . ......... 104<br />
2 Mixtures 118<br />
2.1 Mixtures of materials ....... . . . . . . . ....... . ... . 118<br />
3 Solutions as special mixtures 134<br />
3.1 Solutions .... . . . . . . . . . . . ... . ....... ........ 134<br />
3.2 Soluble substances ....... . . . . . . . ............. 141<br />
3.3 Saturated solutions ....... . . . . . . . ............. 145<br />
4 Dissolving 156<br />
4.1 What is dissolving? ....... . . . . . . . ............. 156<br />
4.2 Rates of dissolving ....... . . . . . . . ............. 159<br />
5 Mixtures <strong>and</strong> water resources 174<br />
5.1 Water pollution ...... . . . . . . . . . . ... ....... .... 174<br />
5.2 Importance of wetl<strong>and</strong>s . ..... . . . . . . . . . ......... 177<br />
6 Processes to purify water 188 1<br />
6.1 Clean water . ..... . . . . . . . . . . ... ....... ...... 188<br />
7 Notes 204
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