English skills and support
For example: Question: Name a compound. Answer: Water. Question: State the features of a compound. Answer: A compound has more than one type of atom, which are joined tightly together. Question: Describe what happens when iron is heated with sulfur.
PL E
Answer: The iron and sulfur react together to form a new substance. The iron atoms bond with the sulfur atoms to make iron sulfide. Question: Explain why metals oxidise.
Answer: Many metals oxidise because of a chemical reaction of the metal surface with the oxygen present in the air.
Comparative and superlative adjectives This section helps you to do two things. It helps you to talk about:
the differences between things (comparative adjectives)
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an object expressing the extreme quality of that thing in a group of objects (superlative adjectives).
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Scientists often want to compare two or more things.
For example: feathers and leaves are lighter than stones and rocks.
SA
Comparative adjectives
Comparative adjectives are formed by adding -er to shorter adjectives and more before longer adjectives. The number of syllables in a word helps you to choose whether to use -er or more. A syllable is the number of sounds in a word. For example, ‘gas’ has one syllable, ‘copper’ has two syllables and ‘magnetic’ has three syllables. Be careful with the spelling rules when forming comparative adjectives. Notice that ‘than’ is used after the comparative adjective.
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