JUNIOR CERTIFICATE SCIENCE VIDEOS

 

MANDATORY PRACTICALS

 

BIOLOGY

OB5     Investigate the conversion of chemical energy in food to heat energy.

 

CHEMISTRY

OC27  Prepare carbon dioxide and show that it does not support combustion.

 

 

PHYSICS

OP2     Measure the mass and volume of a variety of solids and liquids and hence determine their densities:

(a)                a stone

(b)               liquids

OP6     Investigate the relationship between the extension of a spring and the applied force.

OP23   Investigate and describe the expansion of solids, liquids and gases when heated, and contraction when cooled:

(a)                the ball and ring experiment

(b)                 liquid

(c)                 air

OP34  To show that light travels in straight lines.
OP38 To investigate the reflection of light by plane mirrors.
OP38 To demonstrate and explain the operation of a simple periscope.
OP46   Plot the magnetic field of a bar magnet.

OP49   Test electrical conduction in a variety of materials, and classify each material as a conductor or insulator.
OP50 To set up a simple electric circuit, use appropriate instruments to measure current, potential difference (voltage) and resistance, and establish the relationship between them.

 

Other Practicals

 

CHEMISTRY

Air

To show that air has mass

 

PHYSICS

Pressure

The can-crushing experiment.
OP39 To show refraction of light through a lens.

Sound

OP41   Show that sound transmission requires a medium.

Electricity

OP48   Demonstrate the force between charged objects