History
The Industrial Revolution
The Industrial Revolution was a period when new sources of energy, such as coal and steam, were used to power new machines designed to reduce human labor and increase production. The move to a more Read more…
Science
Motion
Scalar and vector quantities Scientists often make measurements. The physical quantities they measure fall into two categories: scalars and vectors. Scalar and vector quantities are treated differently in calculations. Scalar quantities A physical quantity is Read more…
Science
Genetics
Reproduction, the genome and gene expression The differences between sexual and asexual reproduction, the structure of DNA and its role in making proteins, mutations and their effects and how characteristics are inherited. Advantages and disadvantages Read more…
Science
Waves
Properties of waves Waves are one of the ways in which energy may be transferred between stores. Waves can be described as oscillations, or vibrations about a rest position. For example: sound waves cause air Read more…
Science
Plate Tectonics
Terminology and definitions Convection currents Convection currents drive the movement of Earth’s rigid tectonic plates in the planet’s fluid molten mantle. In places where convection currents rise up towards the crust’s surface, tectonic plates move Read more…
Science
The Universe
Stars Our Sun The sun is the nearest star to earth. The sun is a bright yellow dwarf star The sun is about 4.6 billion years old. The sun belongs to the Milky Way Galaxy. Read more…
Science
Chemical Reactions
Reactants: Reactants are the starting substances in the chemical reaction. Products: Products are the substances produced in a chemical reaction. Conservation of Mass: Chemical equations show that atoms are conserved in the reaction; this is Read more…
Texts
Late Ferry Analysis
In this poem, the plodding passage of an old-fashioned wooden ferry, as it’s moving across Sydney Harbour, late at night, is conveyed through the expressive use of a seemingly-arbitrary four-line stanza (or ‘quatrain’). This stanza Read more…
Texts
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