TOPIC: GENERAL REVISION OF SECOND- AND THIRD-TERM WORK
A: TEACHING AND LEARNING MATERIALS
- Rainbow chart.
- Periodic table.
- Atom model.
- First aid box.
- Lever models.
- Pulley model.
- Inclined plane.
- Magnet.
- Force and friction charts.
- Revision flashcards.
B: REFERENCE MATERIALS
- Scheme of work.
- Recommended Basic Science textbook for Primary 6.
- Online educational resources.
C: PREVIOUS KNOWLEDGE
The pupils have completed the second- and third-term Basic Science topics, including light, atoms, elements, safety, simple machines, force, friction and magnetism.
D: PERFORMANCE OBJECTIVES
By the end of the lesson, pupils should be able to:
- Recall the colours of the rainbow.
- Explain atoms and elements.
- Identify common chemical symbols.
- Explain safety and first aid.
- Identify simple machines.
- Explain levers, pulleys and inclined planes.
- Define force and state its effects.
- Explain friction and its uses.
- Explain magnetism.
- Answer general examination-style questions.
E: CONTENT
Revision of Light and Colours
Light enables us to see objects. The seven colours of the rainbow are: 🌈 Red, Orange, Yellow, Green, Blue, Indigo and Violet. The short form is ROYGBIV.
Revision of Atoms and Elements
An atom is a tiny unit of matter. An element is a pure substance made up of one type of atom. Examples:
- Hydrogen – H.
- Oxygen – O.
- Carbon – C.
- Nitrogen – N.
Revision of the First Ten Elements
- Hydrogen – H
- Helium – He
- Lithium – Li
- Beryllium – Be
- Boron – B
- Carbon – C
- Nitrogen – N
- Oxygen – O
- Fluorine – F
- Neon – Ne
Revision of Safety and First Aid
Safety means protection from danger and harm. First aid is immediate assistance given to an injured or sick person before proper medical care is available. A first aid box may contain:
- Bandages.
- Cotton wool.
- Gauze.
- Antiseptic.
- Adhesive plaster.
- Disposable gloves.
Revision of Simple Machines
Simple machines help us perform work more easily. Examples include:
- Lever.
- Pulley.
- Inclined plane.
- Wheel and axle.
- Screw.
- Wedge.
Revision of Levers
A lever has:
- Fulcrum.
- Load.
- Effort.
There are three classes of levers.
Revision of Pulleys
Pulleys include:
- Fixed pulley.
- Movable pulley.
- Compound pulley.
They are used for lifting and moving loads.
Revision of Inclined Planes
An inclined plane is a sloping surface that makes it easier to move objects between different heights. Examples include:
- Ramps.
- Sloping roads.
- Staircases.
Revision of Force
Force is a push or pull. Force can:
- Move an object.
- Stop an object.
- Change speed.
- Change direction.
- Change shape.
Revision of Friction
Friction is a force that opposes movement between surfaces. Friction helps us walk, write and stop vehicles. It can be reduced with lubricants such as oil and grease.
Revision of Magnetism
A magnet has: 🧲 North pole (N) 🧲 South pole (S) Unlike poles attract.
N ↔ S
Like poles repel.
N ↔ N
S ↔ S
Magnets attract materials such as iron and steel.
F: LESSON PRESENTATION
F1: Teachers’ Activities
- Revises light and colours.
- Revises atoms, elements and symbols.
- Uses the periodic table to revise the first ten elements.
- Revises safety and first aid.
- Displays examples of simple machines.
- Revises levers, pulleys and inclined planes.
- Demonstrates force and friction.
- Demonstrates attraction and repulsion using magnets.
- Asks oral and written examination-style questions.
- Corrects pupils where necessary.
F2: Pupils’ Activities
- Recite the colours of the rainbow.
- Define atoms and elements.
- Match elements with their symbols.
- Identify first aid materials.
- Name simple machines.
- Identify types of levers and pulleys.
- Explain force and friction.
- Demonstrate magnetic attraction and repulsion.
- Answer general revision questions.
- Correct their mistakes.
G: CONCLUSION
The teacher revises the major Basic Science topics taught during the second and third terms and corrects pupils where necessary. The teacher encourages pupils to revise all three terms carefully in preparation for their final examination.
H: EVALUATION GUIDE
Pupils should be able to answer the following questions:
- Name the seven colours of the rainbow.
- What is an atom?
- What is an element?
- Write the symbols of hydrogen, oxygen, carbon and nitrogen.
- Name the first ten elements.
- What is first aid?
- Mention four materials found in a first aid box.
- What is a lever?
- Name the three parts of a lever.
- Mention three types of pulleys.
- What is an inclined plane?
- Define force.
- State four effects of force.
- What is friction?
- State two advantages and two disadvantages of friction.
- What is a magnet?
- Name the two poles of a magnet.
- What happens when unlike poles are brought together?
- Mention four uses of magnets.
- Mention three simple machines.