Combined Science Notes
BIOLOGY
Laboratory Safety and apparatus
Animal Nutrition
Transport in Plants
Transport in Animals
Reproduction in plants
Ecosystems
1. Ecosystems
2. The Soil
a) The physical components of the soil
i) Experiment comparing the particle size of soils
ii) Experiment: Comparing the air content of soils
iii) Experiment: Comparing the water-holding capacity of the soil
iv) Experiment: Comparing leaching in soils
v) Experiment: Testing the infiltration capacity of soils
vi) Experiment: Testing the alkalinity/acidity of the soil
i) Experiment comparing the particle size of soils
ii) Experiment: Comparing the air content of soils
iii) Experiment: Comparing the water-holding capacity of the soil
iv) Experiment: Comparing leaching in soils
v) Experiment: Testing the infiltration capacity of soils
vi) Experiment: Testing the alkalinity/acidity of the soil
4 Artificial Ecosystems
5 Managing Ecosystems
6 Marginal areas in Zimbabwe
Inheritance
Nutrition and Reproduction in Humans
- Reproduction in Humans:
- Sexually Transmitted Infections (STIs)
- Population
CHEMESTRY
1 States of matter
3 Experiments
a) To show that solids change shape when they melt
b) To show changes in shape and volume of iodine crystals when they are heated
c) The heating curve for water
d) To show the cooling effect of vaporizing ether
e) To show the cooling effect of methylated spirits
f) The cooling curve of naphthalene
a) To show that solids change shape when they melt
b) To show changes in shape and volume of iodine crystals when they are heated
c) The heating curve for water
d) To show the cooling effect of vaporizing ether
e) To show the cooling effect of methylated spirits
f) The cooling curve of naphthalene
- Molecules
- Mixtures and Compounds
- Separation Methods
- Filtration
- Magnetism
- Winnowing,
- Decanting,
- Evaporation
- Fractional distillation
- Paper chromatography
- Chemical reactions
2. The reactions of metals and water
a) Experiment: The reaction of metals and water
b) Experiment: The reaction of magnesium with steam
a) Experiment: The reaction of metals and water
b) Experiment: The reaction of magnesium with steam
3 The reaction of metals with dilute acids
a) Experiment: The reaction of metals with dilute Hydrochloric acid
a) Experiment: The reaction of metals with dilute Hydrochloric acid
4 Predicting reactions of a metal using the reactivity series
1. The speed of reactions
a) Experiment:Rate of reactions and particle size
b) Experiment: Rate of reactions and concentration: hydrochloric acid and sodium thiosulphate
c) Experiment : Reactions and concentrations:marble chips and hydrochloric acid
d) Experiment: The rate of reactions and temperature
e) Experiment: The effects of a catalyst on the rate of a reaction
a) Experiment:Rate of reactions and particle size
b) Experiment: Rate of reactions and concentration: hydrochloric acid and sodium thiosulphate
c) Experiment : Reactions and concentrations:marble chips and hydrochloric acid
d) Experiment: The rate of reactions and temperature
e) Experiment: The effects of a catalyst on the rate of a reaction
1 Iron
a) Extraction of iron: The blast furnace
b) Cast iron and the oxygen lance process
c) Steel making
a) Extraction of iron: The blast furnace
b) Cast iron and the oxygen lance process
c) Steel making
b) Purification of copper using electrolysis
i) Experiment: Purification of copper using electrolysis
i) Experiment: Purification of copper using electrolysis
c) Extraction of copper from oxides
i) Experiment: Reduction of copper using carbon
ii) Experiment: Separating copper from its oxides
i) Experiment: Reduction of copper using carbon
ii) Experiment: Separating copper from its oxides
3 Coating metals/Protecting metals from corrosion
a) Galvanising iron
a) Galvanising iron
b) The electroplating process
i) Experiment: Copper plating an iron nail
ii) Experiment: Nickel platting a piece of copper sheet
iii) Experiment Chrome plating a nickel cathode
iv) Experiment: Investigating the corrosion of plated of plated iron
v) Summary of plating and its uses
i) Experiment: Copper plating an iron nail
ii) Experiment: Nickel platting a piece of copper sheet
iii) Experiment Chrome plating a nickel cathode
iv) Experiment: Investigating the corrosion of plated of plated iron
v) Summary of plating and its uses
c) Painting
SCIENCE IN ENERGY USES
1. Electrostatics/Static Electricity
a) Experiment: Charges between charged bodies
b) Conductors and insulators
c) Lighting
a) Experiment: Charges between charged bodies
b) Conductors and insulators
c) Lighting
2) Current electricity
a) Potential difference
b)Experiment: Current and Voltage
c) Ohm’s Law
d) Experiment: Finding the resistance of a resistor using a voltmeter
e) Resistors in parallel and in series
f)Experiment: Determining the resistance of resistors in parallel and in series
g) Electrical Power
h) Electrical Power calculations
a) Potential difference
b)Experiment: Current and Voltage
c) Ohm’s Law
d) Experiment: Finding the resistance of a resistor using a voltmeter
e) Resistors in parallel and in series
f)Experiment: Determining the resistance of resistors in parallel and in series
g) Electrical Power
h) Electrical Power calculations
3) Electric cells
a) Perfecting the electric cell
b)Experiment: Changing chemical energy into electrical energy
c) Experiment:Measuring the potential difference of cells when different electrodes are used
d) The dry electric cell
e) Photo-voltaic cells: Solar panels
f) Experiment: Connecting solar cells to make panel
g) Cells in a series
h) Cells in parallel
i) lead acid accumulators
j) The Ampere-Hour
a) Perfecting the electric cell
b)Experiment: Changing chemical energy into electrical energy
c) Experiment:Measuring the potential difference of cells when different electrodes are used
d) The dry electric cell
e) Photo-voltaic cells: Solar panels
f) Experiment: Connecting solar cells to make panel
g) Cells in a series
h) Cells in parallel
i) lead acid accumulators
j) The Ampere-Hour
4) Motors and generators
a) Electromagnetic Induction
b)Experiment: Generating electricity
c) Experiment: Demonstrating how current is induced
d) The Alternating Power generator
e) The direct current generator
f) Uses of generators
g) Transmission of electricity
h) Electric motors
i) Experiment: Demonstrating that an electric wire moves in a magnetic field
j) A simple D.C motor
k) Experiment:Making a model electric motor
l) Fleming’s Left hand rule
a) Electromagnetic Induction
b)Experiment: Generating electricity
c) Experiment: Demonstrating how current is induced
d) The Alternating Power generator
e) The direct current generator
f) Uses of generators
g) Transmission of electricity
h) Electric motors
i) Experiment: Demonstrating that an electric wire moves in a magnetic field
j) A simple D.C motor
k) Experiment:Making a model electric motor
l) Fleming’s Left hand rule
PHYSICS
1 Beams
2 Stress
3 Loading a beam
4 Strength to Mass ratio
5 Depth and Strength of beams
6 The strength of Materials
2 Stress
3 Loading a beam
4 Strength to Mass ratio
5 Depth and Strength of beams
6 The strength of Materials
7 Experiments
a) The effect of different forces on sponge rubber
b) Demonstrating compression and tensile forces
c) Testing the strength of various beams
d) Comparing the strength of cylindrical and square tube beams
e) Investigating whether thick beams support more weight
f) To investigate whether the length of a beam affects its strength
a) The effect of different forces on sponge rubber
b) Demonstrating compression and tensile forces
c) Testing the strength of various beams
d) Comparing the strength of cylindrical and square tube beams
e) Investigating whether thick beams support more weight
f) To investigate whether the length of a beam affects its strength
1 Structures and construction materials
a) Timber properties and timber structures
b) Metal and metal alloy properties and their construction uses
c) Reinforced concrete and stone properties and structures
a) Timber properties and timber structures
b) Metal and metal alloy properties and their construction uses
c) Reinforced concrete and stone properties and structures
2 Factors to consider when choosing construction materials
3 Experiment: Comparing the strength of natural timber and other construction materials
4 Experiment: To compare the shear and tensile strength of sponge rubber and soft wood
5 Experiment:To compare the effects of atmospheric corrosion on metals
6 Experiment To show the effect of sulphuric acid on some materials
7 Experiment: To compare the resistance of different woods to termite attack