Good Science Victorian Curriculum Year 7
Digital sample of Matilda's newest publication, Good Science Victorian Curriculum Year, authored by Emma Craven and Aaron Elias. For more information visit www.matildaeducation.com.au or email Katrina Tucker, katrinatucker@matildaed.com.au
Digital sample of Matilda's newest publication, Good Science Victorian Curriculum Year, authored by Emma Craven and Aaron Elias. For more information visit www.matildaeducation.com.au or email Katrina Tucker, katrinatucker@matildaed.com.au
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Chapter 5<br />
Mixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66<br />
5.1 Mixtures and pure substances. 68<br />
5.2 Solute, solvent, solution. 70<br />
5.3 Water as a solvent. 72<br />
5.4 Separation techniques:<br />
filtering and decanting. 74<br />
5.5 Separation techniques: froth<br />
flotation and magnetic separation. 76<br />
5.6 Separation techniques:<br />
evaporation and distillation. 78<br />
5.7 Separation techniques: chromatography,<br />
centrifugation and funnel separation. 80<br />
5.8 Water filtration and waste<br />
management. 82<br />
5.9 Cleaning up oil spills. 84<br />
Visual summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86<br />
Final challenge. 87<br />
EARTH AND SPACE SCIENCES. 88<br />
Chapter 6<br />
Earth, the Sun and the Moon . . . . . . . . . . . . . . . . . . 88<br />
6.1 Day and night . 90<br />
6.2 Seasons. 92<br />
6.3 Eclipses. 94<br />
6.4 Models of the solar system. 96<br />
6.5 The technology of discovery . 98<br />
Visual summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100<br />
Final challenge. 101<br />
Chapter 7<br />
Earth’s resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102<br />
7.1 What is a resource? . 104<br />
7.2 Non-renewable resources. 106<br />
7.3 Renewable resources. 108<br />
7.4 Conserving Earth’s resources . 110<br />
7.5 Scientists involved in mining . 112<br />
7.6 Resource use and the environment. . . . . . . . . . 114<br />
Visual summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116<br />
Final challenge. 117<br />
PHYSICAL SCIENCES . 118<br />
Chapter 8<br />
Forces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118<br />
8.1 Balanced forces. 120<br />
8.2 Unbalanced forces. 122<br />
8.3 The size and direction of forces. 124<br />
8.4 Friction. 126<br />
8.5 Factors affecting friction. 128<br />
8.6 Gravity . 130<br />
8.7 Unbalanced gravitational forces. 132<br />
8.8 Reducing the impact of forces. 134<br />
8.9 Simple machines. 136<br />
Visual summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138<br />
Final challenge. 139<br />
INVESTIGATIONS<br />
AND KEY SKILLS. 140<br />
Glossary. 184<br />
Index. 187<br />
Acknowledgements . 190<br />
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