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Experiment Videos

 

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