Good Science Victorian Curriculum Year 7

More documents

Recommendations

Info

INVESTIGATIONS Investigation 5.5 Froth flotation KEY SKILL IDENTIFYING AND MANAGING RELEVANT RISKS Brainstorm with a partner to identify three possible hazards or risks that may be involved in this investigation. Suggest one way that each hazard or risk could be reduced. AIM To investigate the froth flotation process MATERIALS • kerosene • liquid detergent • mixture of 3 parts sand to 1 part iron filings • water • teaspoon • large test tube • rubber stopper 20 min Level 1 METHOD 1 Pour one teaspoon of the sand and iron mixture into the test tube. 2 Add water until the test tube is about half full, then insert the stopper and shake the test tube for 10 seconds. Record your observations. 3 Remove the stopper and add 3 drops of kerosene and 7–8 drops of detergent. Insert the stopper and shake the test tube for another 10 seconds. Record your observations. QUESTIONS 1 What did you observe in the test tube after you added the kerosene and detergent? 2 Explain why the iron filings acted as they did. 3 Suggest how froth flotation could be used in industrial separation. CONCLUSION Copy and complete: ‘The results show that: (respond to the aim)’. KEROSENE IS A HAZARD. IT IS HIGHLY FLAMMABLE. NEVER USE IT NEAR MATCHES OR OPEN FLAME. NEVER INHALE OR INGEST IT. WASH YOUR HANDS IMMEDIATELY IF IT COMES INTO CONTACT WITH YOUR SKIN. 158 GOOD SCIENCE VICTORIAN CURRICULUM 7
INVESTIGATIONS Investigation 5.6A Evaporating a solution KEY SKILL IDENTIFYING LIMITATIONS TO THE METHOD AND SUGGESTING IMPROVEMENTS When you write a formal investigation report there is always a discussion section that includes a discussion of potential errors. These errors are limitations (or problems) with the method. For each error, you list a way to control it (your suggested improvement). Hint #1: Brainstorm three potential errors that might have occurred in this investigation that could have affected or changed the results you collected (for example, if through human error something was not measured accurately). Now work with a partner to suggest ways each error could be controlled. AIM To investigate what happens when a solution evaporates Copper sulfate solution Evaporating basin Gauze mat MATERIALS • copper sulfate solution • evaporating basin • Bunsen burner • heatproof mat 30 min Level 2 • tripod • gauze mat • matches METHOD 1 Place a small amount (5 mL) of copper sulfate solution in an evaporating basin. 2 Set up the apparatus as shown and put on your safety glasses. 3 Place the evaporating basin on the gauze mat and heat the solution. 4 Record your observations as the water evaporates. 5 Turn off the Bunsen burner before the last few drops evaporate. QUESTIONS 1 Describe the copper sulfate solution prior to the evaporation. 2 Describe the substance after evaporation had occurred. 3 Describe a safety precaution required for this investigation. 4 What happened to the water from the copper solution in this experiment? CONCLUSION Copy and complete: ‘The results show that: (respond to the aim)’. Bunsen burner Heatproof mat AN OPEN FLAME IS A HAZARD. TAKE CAUTION. IF YOU BURN YOURSELF, TELL YOUR TEACHER IMMEDIATELY AND PLACE THE BURNT AREA UNDER COLD RUNNING WATER FOR 20 MINUTES. COPPER SULFATE IS TOXIC. IF YOU COME INTO CONTACT WITH THE SOLUTION, TELL YOUR TEACHER IMMEDIATELY AND WASH IT OFF YOUR SKIN. ALWAYS WEAR SAFETY GLASSES. 159
Page 1 and 2:
GOOD SCIENCE VICTORIAN CURRICULUM Y
Page 3 and 4:
GOOD SCIENCE VICTORIAN CURRICULUM Y
Page 5 and 6:
MAKE EVERY LESSON A GOOD LESSON
Page 7 and 8:
Chapter 5 Mixtures . . . . . . . .
Page 9 and 10:
VICTORIAN CURRICULUM SCIENCE LEVELS
Page 11 and 12:
CHAPTER 1: SCIENCE SKILLS 3 SEE-KNO
Page 13 and 14:
CHAPTER 1: SCIENCE SKILLS 2 Get to
Page 15 and 16:
CHAPTER 1: SCIENCE SKILLS Get to kn
Page 17 and 18:
CHAPTER 1: SCIENCE SKILLS 3 Organis
Page 19 and 20:
CHAPTER 1: SCIENCE SKILLS 3 The ind
Page 21 and 22:
CHAPTER 1: SCIENCE SKILLS RESULTS T
Page 23 and 24:
Test tube brush Test tube Beaker Br
Page 25 and 26:
CHAPTER 2: CLASSIFICATION 3 SEE-KNO
Page 27 and 28:
CHAPTER 2: CLASSIFICATION 2 3 Livin
Page 29 and 30:
CHAPTER 2: CLASSIFICATION Keys iden
Page 31 and 32:
CHAPTER 2: CLASSIFICATION 2 Every s
Page 33 and 34:
CHAPTER 2: CLASSIFICATION 2 Inverte
Page 35 and 36:
CHAPTER 2: CLASSIFICATION 2 Seeds,
Page 37 and 38:
CHAPTER 2: CLASSIFICATION Figure 2.
Page 39 and 40:
CHAPTER 2: CLASSIFICATION 3 Bacteri
Page 41 and 42:
CHAPTER 2: CLASSIFICATION FINAL CHA
Page 43 and 44:
CHAPTER 3: ECOSYSTEMS 3 SEE-KNOW-WO
Page 45 and 46:
CHAPTER 3: ECOSYSTEMS 3 Decomposers
Page 47 and 48:
CHAPTER 3: ECOSYSTEMS Table 3.2 Org
Page 49 and 50:
CHAPTER 3: ECOSYSTEMS 3 Symbiosis i
Page 51 and 52:
CHAPTER 3: ECOSYSTEMS 2 3 Some micr
Page 53 and 54:
CHAPTER 3: ECOSYSTEMS 2 3 Removing
Page 55 and 56:
CHAPTER 3: ECOSYSTEMS 3 Reducing an
Page 57 and 58:
CHAPTER 3: ECOSYSTEMS Figure 3.16 T
Page 59 and 60:
CHAPTER 3: ECOSYSTEMS FINAL CHALLEN
Page 61 and 62:
CHAPTER 4: STATES OF MATTER 3 SEE-K
Page 63 and 64:
CHAPTER 4: STATES OF MATTER 2 3 The
Page 65 and 66:
CHAPTER 4: STATES OF MATTER 2 3 Sub
Page 67 and 68:
CHAPTER 4: STATES OF MATTER 2 3 Liq
Page 69 and 70:
CHAPTER 4: STATES OF MATTER 2 3 4 L
Page 71 and 72:
CHAPTER 4: STATES OF MATTER 2 3 Den
Page 73 and 74:
CHAPTER 4: STATES OF MATTER FINAL C
Page 75 and 76:
CHAPTER 5: MIXTURES 3 SEE-KNOW-WOND
Page 77 and 78:
CHAPTER 5: MIXTURES 2 3 Mixtures ar
Page 79 and 80:
CHAPTER 5: MIXTURES 3 4 Solutions a
Page 81 and 82:
CHAPTER 5: MIXTURES 2 3 Water is a
Page 83 and 84:
CHAPTER 5: MIXTURES 2 3 Filtration
Page 85 and 86:
CHAPTER 5: MIXTURES 2 Magnets are u
Page 87 and 88:
CHAPTER 5: MIXTURES 2 Distillation
Page 89 and 90:
CHAPTER 5: MIXTURES 2 3 A separatin
Page 91 and 92:
CHAPTER 5: MIXTURES 2 Sewage is pro
Page 93 and 94:
CHAPTER 5: MIXTURES 3 Oil spills ca
Page 95 and 96:
CHAPTER 5: MIXTURES FINAL CHALLENGE
Page 97 and 98:
CHAPTER 6: EARTH, THE SUN AND THE M
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
CHAPTER 7: EARTH’S RESOURCES 23 S
Page 113 and 114:
CHAPTER 7: EARTH’S RESOURCES 3 no
Page 115 and 116: CHAPTER 7: EARTH’S RESOURCES 3 Ro
Page 117 and 118: CHAPTER 7: EARTH’S RESOURCES 3 4
Page 119 and 120: CHAPTER 7: EARTH’S RESOURCES Figu
Page 125 and 126: CHAPTER 7: EARTH’S RESOURCES FINA
Page 127 and 128: CHAPTER 8: FORCES 3 SEE-KNOW-WONDER
Page 129 and 130: CHAPTER 8: FORCES 3 What would happ
Page 131 and 132: CHAPTER 8: FORCES 2 We can predict
Page 133 and 134: CHAPTER 8: FORCES 2 The direction o
Page 135 and 136: CHAPTER 8: FORCES 2 3 Kinetic frict
Page 137 and 138: CHAPTER 8: FORCES 2 Other forces in
Page 139 and 140: CHAPTER 8: FORCES Imagine a mattres
Page 141 and 142: CHAPTER 8: FORCES 3 On the surface
Page 143 and 144: CHAPTER 8: FORCES Figure 8.10 The f
Page 145 and 146: CHAPTER 8: FORCES 2 3 Pulleys redir
Page 147 and 148: CHAPTER 8: FORCES FINAL CHALLENGE 1
Page 149 and 150: INVESTIGATIONS KEY SKILLS Writing a
Page 151 and 152: INVESTIGATIONS Investigation 2.2 Su
Page 153 and 154: INVESTIGATIONS Investigation 2.6 Gr
Page 155 and 156: INVESTIGATIONS Investigation 3.2 Mo
Page 157 and 158: INVESTIGATIONS Investigation 4.1 Co
Page 159 and 160: INVESTIGATIONS Investigation 4.3 Ex
Page 161 and 162: INVESTIGATIONS Investigation 4.5 Ex
Page 163 and 164: INVESTIGATIONS METHOD 1 Copy the re
Page 165: INVESTIGATIONS RESULTS 30 min Level
Page 169 and 170: INVESTIGATIONS Investigation 5.6C D
Page 171 and 172: INVESTIGATIONS Investigation 5.7B S
Page 173 and 174: INVESTIGATIONS Investigation 6.2 Mo
Page 175 and 176: INVESTIGATIONS 30 min Level 2 TO MO
Page 177 and 178: INVESTIGATIONS Investigation 7.1 Cl
Page 179 and 180: INVESTIGATIONS Investigation 7.3A D
Page 181 and 182: INVESTIGATIONS Investigation 7.4 Th
Page 183 and 184: INVESTIGATIONS Investigation 8.1 Pu
Page 185 and 186: INVESTIGATIONS Investigation 8.4 He
Page 187 and 188: INVESTIGATIONS Investigation 8.6 Me
Page 189 and 190: INVESTIGATIONS METHOD 1 Copy the re
Page 191 and 192: INVESTIGATIONS Investigation 8.9B I
Page 193 and 194: fractional distillation a method th
Page 195 and 196: INDEX Aboriginal and Torres Strait
Page 197 and 198: photosynthesis 30, 31, 36, 42, 109
show all

Good Science Victorian Curriculum Year 7

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?