Science Book Videos
Mandatory investigations and experiments
Measure the mass and volume of a variety of solids and liquids and hence determine their densities.
Investigate the relationship between the extension of a spring and the applied force.
Identify different forms of energy and carry out simple experiments to show the following energy conversions:
(a) chemical energy to electrical energy to heat energy
(b) electrical energy to magnetic energy to kinetic energy
(c) light energy to electrical energy to kinetic energy.
Investigate and describe the expansion of solids, liquids and gases when heated, and contraction when cooled.
Carry out simple experiments to show the transfer of heat energy by conduction, convection and radiation; investigate conduction and convection in water.
Show that light travels in straight lines.
Investigate the reflection of light by plane mirrors, and illustrate this using ray diagrams; demonstrate and explain the operation of a simple periscope.
Plot the magnetic field of a bar magnet.
Test electrical conduction in a variety of materials, and classify each material as a conductor or insulator.
Set up simple electric circuits; use appropriate instruments to measure current, potential difference (voltage) and resistance, and establish the relationship between them.