Natural Sciences and Technology Grade 6-A - Thunderbolt Kids

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REVISION: 1. What does it mean to purify water? 2. What is clean water? 3. Why do humans, animals and plants need clean water? Write a paragraph where you describe some of these needs. 4. If you were not sure about the water that came out of the tap and you had akettle, what would you do to the water to purify it? Why do you think this method of purifying works? 5. The woman in the picture is drinking water from the edge of a dam. What possible threats could she face from drinking this water without doing anything to purify it? 202 Matter and Materials
6. Name the 5steps in the water treatment process. 7. Do you think it is important to conserve water? Why do you think so? Write a paragraph to justify your answer. Chapter 6. Processes to purify water 203
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Natural Sciences and Technology Gra
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AUTHORS LIST This book was written
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Welcome to Grade 6 and to Natural S
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Hey! My name is Tom. I have two pla
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Hello! My name is Sophie. One of my
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Table of Contents Life and Living a
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Scientists have found out exactly h
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- stem (sugar cane) - seeds (wheat
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2. Design a poster for your Gr 4fri
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Sunflower seeds. Lettuce. Sugar can
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QUESTIONS: 1. Was it easy to distin
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QUESTIONS: 1. Which test do you thi
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QUESTIONS: 1. Make a list of living
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REVISION: 1. List the four things t
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7. What do plants store glucose as?
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Examples of the foods in the food g
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3. Fats and oils: Meat. Lentils. Al
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Name of vitamin Sources Function Vi
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Very often food manufacturers add d
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The natural foods contained a mixtu
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KEY CONCEPTS • Food groups: - foo
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Name of vitamin Vitamin A Vitamin C
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• The food in the middle of the p
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Tuesday Wednesday Thursday Friday t
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4. What important food group is Raj
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Breakfast: Option 1: Fruit loops Op
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Supper: Option 1: Chicken pieces Op
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Causes of apoor diet There are many
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• Diabetes: This is adisease that
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3. On your poster, you must include
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4. Write a paragraph where you expl
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ACTIVITY: A REALLY old role play Wo
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2. Can you predict how the locals w
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Benefits of food processing Food pr
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Food Reason for being processed Raw
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ACTIVITY: Class discussion INSTRUCT
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Highly processed foods: • Highly
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preserve it, just like people did 3
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ACTIVITY: Comparing traditional and
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5. Use the space below to draw a fl
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KEY CONCEPTS • Food is processed
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5. A farmer wants to export some gr
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I really enjoyed that, especially l
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• arctic and alpine tundra are in
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A unique South African ecosystem So
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A healthy ecosystem is one in which
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In this man-made forest, there is n
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• insectivores only eat ... can y
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A food web in asavanna. There are a
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• Forest ecosystem: grass, small
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7. When marking out your ecosystem
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2: 3: Animal species: 1: 2: 3: Chap
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interdependent and they are connect
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REVISION: 1. Provide a definition f
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10. What choices do you need to mak
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Did you know that all matter is act
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We would see that the particles in
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3. If you should come into contact,
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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
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We have learnt that materials exist
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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
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3. Can you separate the mixture int
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INSTRUCTIONS: 1. Place 10 scoops of
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Picture of mixture INSTRUCTIONS (Pa
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REVISION: 1. What is amixture? 2. L
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Now that we know more about mixture
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ACTIVITY: When is amixture also aso
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What is asolution? When two substan
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Wait! How is it possible for one su
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4. What do you think happened to th
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In the previous chapter, we saw how
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4. Which method do you think works
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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
Page 173 and 174: 3. What did we change in this inves
Page 175 and 176: 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: STEP 3: AERATION The raw water now
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Natural Sciences and Technology Grade 6-A - Thunderbolt Kids

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