Fechar
Atoms, elements and compounds
Atoms and their own symbols
Compounds
Atomic structure
Atomic number and periodic table
Mass number
Arrangement of electrons in atoms
Electron shells
Electrons and periodic table
Forming bonds
Forming ions
Forming molecules
Chemical formulae
Chemical equations
Making an equation balanced
Uses of limestone
Heating limestone
Reactions of carbonates
Testing for carbon dioxide
Decomposing carbonates
Neutralising acids
Development of lime mortar
Cement
Concrete
Limestone issues
Limestone quarrying
Development in limestone, cement and concrete
2. Development in limestone, cement and concrete
Where metals come from
Reactivity series
How do we extract metals
Iron
Steel
Carbon steels
Alloy steels
Properties and uses of aluminium
Extracting aluminium
Properties and uses of titanium
Extracting titanium
Extracting copper from copper-rich ores
Extracting copper from copper rich ores
Extracting copper from low-grade ores
Exploiting metal ores
Phytomining
Recycling metals
Metallic structures
Some benefits of using metals in construction
Drawbacks of using metals in construction
Fuels from crude oil
Crude oil
Hydrocarbons
Alkanes
Compounds in crude oil
Short chain molecules of hydrocarbon properties
Long chain molecules of hydrocarbons properties
Fractional distillation of crude oil
Burning fuels
Pollution from fuels
Pollution from fuels: Particulates
Not Clean fuels
Kinds of pollution
Kinds of pollution: Sulfur dioxide and nitrogen oxide
Cleaning up our act
Biofuels
Advantages of biofuels
Disadvantages of biofuels
Using ethanol as a biofuel
Hydrogen - fuel for the future
Cracking hydrocarbons
Example of cracking
Akene test
Making polymers from alkenes
Plastics
How monomers join together
New and useful polymers
Light-sensitive plasters
Hydrogels
Shape memory polymers
New uses for old polymers
Plastic waste
Biodegradable plastics
Recycling plastics
Ethanol
Making ethanol by fermentation
Making ethanol from ethene (hydration)
Disadvantages of hydration
Extracting vegetable oil
Vegetable oils as foods and fuels
Cooking with vegetable oils
What's the differnece
Hardening unsaturated vegetable oil
Emulsions in foods
Other uses of emulsions
How an emulsifier works
Emulsifying additives
Vegetable oils in our diet
Structure of Earth
Layers of Earth:
Developing scientific ideas from evidence
Continents are moving
Tectonic plates
Trying to predict the unpredictable
:( Such a bad title=
Wegner's revolutionary theory
Who makes these titles?
Earth's atmosphere in past
Earth's early atmosphere
Oxygen in the atmosphere
Life on Earth
Miller-Urey experiment
Miller-Urey experiment continued
Other theories
Life
That's a good title ;)
Carbon 'locked into' rock
Ammonia and methane
The atmosphere today
Separating the gases in air
Nitrogen uses
Oxygen uses
Carbon dioxide in the atmosphere
The changing balance
Changes
Thinking of solution at what cost?
Seriously these titles
