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 | | | |