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Unit 9
Experiment 9.1 Preparing a natural indicator
Experiment 9.2 Classifying solutions as acidic, alkaline or neutral
Experiment 9.3 Using universal indicator solution to find the pH values of different solutions
Experiment 9.4 Using pH paper to find the pH values of some substances
Experiment 9.5 Using a pH meter to measure the pH values of some substances
Experiment 9.6 Studying the change of pH value during neutralization
Experiment 9.7 Are there any new substances formed during neutralization?
Experiment 9.8 Is mass conserved in neutralization?
Experiment 9.9 Reactions between acids and metals
Experiment 9.10 Reactions between acids and building materials
Experiment 9.11 Investigating the effect of acidic solutions of different pH values on the growth of seedlings
Experiment 9.12 Corrosive effect of concentrated strong alkali
Unit 10
Experiment 10.1 Dissecting an ox eye
Experiment 10.2 The role of the lens in focusing
Experiment 10.3 Short sight, long sight and their correction
Experiment 10.4 How is sound produced?
Experiment 10.5 How is sound transmitted?
Experiment 10.6 Can sound travel through solids or liquids?
Experiment 10.7 Can sound travel through a vacuum?
Experiment 10.8 What range of sound frequency can we hear?
Experiment 10.9 How does our sense of smell affect our sense of taste?
Experiment 10.10 Which part of your upper limb is most sensitive to touch?
Experiment 10.11 Is our skin reliable in detecting hot and cold?
Experiment 10.12 How do we maintain good balance?
Experiment 10.13 Measuring your reaction time
Unit 11
Experiment 11.1 Interpreting the distance-time graph of an object
Experiment 11.2 Observing uniform motion
Experiment 11.3 Using a spring balance to measure the force on a spring
Experiment 11.4 Studying a force that can act on an object without contact
Experiment 11.5 Studying the overall effect of forces on the motion of an object
Experiment 11.6 Observing the motion of an object falling freely under gravity
Experiment 11.7 Finding out the relationship between weight and mass
Experiment 11.8 Measuring friction
Experiment 11.9 Reducing friction
Experiment 11.10 Realizing that forces occur in pairs
Experiment 11.11Are the magnitudes of action and reaction equal?
Experiment 11.12 Launching a water rocket