Cambridge Checkpoint, Science 8, Coursebook, Jones M., Fellowes-Freeman D., Sang D., 2014

Cambridge Checkpoint, Science 8, Coursebook, Jones M., Fellowes-Freeman D., Sang D., 2014.
    
   Welcome to your Cambridge Secondary 1 Science course!
This book covers the second year, Stage 8, of the Cambridge Secondary 1 Science curriculum. At the end of the year, your teacher may ask you to take a test called a Progression Test. This book will help you to learn how to be a good scientist, and to do well in the test.




Investigating photosynthesis.
How can we tell if a leaf is photosynthesising? One of the simplest ways is to check if it is giving off (releasing) oxygen gas. This is easiest to do if the leaf is under water, because the oxygen gas makes bubbles.

Collecting the gas produced in photosynthesis.
The diagram shows the apparatus you need to set up for this experiment. You can use any plant that grows under water. You can usually get pond weed at a pet shop, because people buy it to put into fi sh tanks. If you live near the sea, you can use seaweed instead.

Leave the apparatus in a place where the plant will get plenty of light. If it is very warm and sunny, you may see the gas collecting quickly. If it is colder and not so bright, you may need to leave it for a day to give time for the gas to collect.

Contents.
Introduction.
Biology.
Unit 1 Plants.
1.1 Photosynthesis.
1.2 Leaves.
1.3 Investigating photosynthesis.
1.4 Roots.
1.5 Transporting water and minerals.
End of unit questions.
Unit 2 Food and digestion.
2.1 Nutrients.
2.2 A balanced diet.
2.3 Digestion and absorption.
2.4 The human digestive system.
2.5 Teeth.
2.6 Enzymes.
End of unit questions.
Unit 3 The circulatory system.
3.1 The human circulatory system.
3.2 The heart.
3.3 Blood.
3.4 Blood vessels.
End of unit questions.
Unit 4 Respiration.
4.1 The human respiratory system.
4.2 Gas exchange.
4.3 Aerobic respiration.
4.4 Keeping fit.
4.5 Cigarettes and health.
End of unit questions.
Unit 5 Reproduction and development.
5.1 Gametes.
5.2 The human reproductive system.
5.3 What happens to the egg cell?.
5.4 From embryo to baby.
5.5 Growth and development.
5.6 Lifestyle and health.
End of unit questions.
Chemistry.
Unit 6 States of matter.
6.1 Particle theory.
6.2 Diffusion.
6.3 Investigating diffusion.
6.4 Brownian motion.
6.5 Gas pressure.
End of unit questions.
Unit 7 Elements and compounds.
7.1 Atoms.
7.2 Atoms and elements.
7.3 T he Periodic Table.
7.4 Compounds.
7.5 Formulae.
End of unit questions.
Unit 8 Mixtures.
8.1 Compounds and mixtures.
8.2 More about mixtures.
8.3 Separating mixtures.
8.4 Chromatography.
8.5 Solutions.
8.6 Solubility.
8.7 Solubility investigation.
End of unit questions.
Unit 9 Material changes.
9.1 Physical and chemical changes.
9.2 Burning.
9.3 Reactions with acids.
9.4 Rearranging atoms.
9.5 More about conservation of mass.
9.6 Detecting chemical reactions.
9.7 Rusting.
End of unit questions.
Physics.
Unit 10 Measuring motion.
10.1 How fast? - Measuring speed.
10.2 Speed check.
10.3 Speed calculations.
10.4 Patterns of movement.
10.5 Distance/time graphs.
End of unit questions.
Unit 11 Sound.
11.1 Changing sounds.
11.2 Looking at vibrations.
11.3 How sound travels.
11.4 Sounds on a screen.
11.5 How we hear.
End of unit questions.
Unit 12 Light.
12.1 How light travels.
12.2 How shadows form.
12.3 How reflections form.
12.4 How light bends.
12.5 The spectrum of white light.
12.6 Coloured light.
End of unit questions.
Unit 13 Magnetism.
13.1 Magnets and magnetic materials.
13.2 Magnetic poles.
13.3 Magnetic field patterns.
13.4 Making an electromagnet.
13.5 A stronger electromagnet.
13.6 Electric currents make magnetic fields.
End of unit questions.
Reference.
Making better measurements.
Measuring instruments.
Improving accuracy.
Anomalous results.
Understanding equations.
Glossary and index.
Acknowledgements.



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