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
a. Use the information in the pie chart and make a list of all the gases that are found in clean air. b. Which gas is the most abundant in air? (Which gas is found in the largest amount?) What percentage of this gas is present in clean air? c. What percentage of oxygen is present in air? d. If you had 5000 air particles, how many of these particles would be oxygen particles? 132 Matter and Materials
Now that we know more about mixtures of materials, let’s find out more about special types of mixtures! Chapter 2. Mixtures 133
- 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
- Page 107 and 108: 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
- Page 123 and 124: 2. Did they behave dierently? 3. In
- Page 125 and 126: 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
- Page 131 and 132: 3. Separate the mixture into a pile
- Page 133 and 134: 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: REVISION: 1. What is amixture? 2. L
- 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
- Page 159 and 160: 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
Now that we know more<br />
about mixtures of materials,<br />
let’s find out more about<br />
special types of mixtures!<br />
Chapter 2. Mixtures<br />
133
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