| Method |
Precise Learning Objective |
Linked |
Question / Activity
(Designed for maximum working out) |
Stepping Stones |
Pitstop Check
(Thinking Map) |
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All substances are made of atoms. An atom is the smallest part of an element that can exist. |
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What is the smallest part of an element that can exist? |
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Atoms of each element are represented by a chemical symbol, eg O represents an atom of oxygen, Na represents an atom of sodium. |
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How are atoms of elements represented on the periodic table? |
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There are about 100 different elements. Elements are shown in the periodic table. |
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How many different elements are there? |
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Compounds are formed from elements by chemical reactions. |
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How are compounds formed? |
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Chemical reactions always involve the formation of one or more new substances, and often involve a detectable energy change. |
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How can chemical reactions be detected other than through the observation of new substances forming? DEMO:
making NaCl on a brick
- student led enquiry task (clues given and they are to work out what compound is formed) discuss change in properties from elements to compounds |
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Compounds contain two or more elements chemically combined in fixed proportions and can be represented by formulae using the symbols of the atoms from which they were formed. |
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What is a compound and how is it respresented? Use molymods to model the reaction of H2 with O2 to produce H2O. How do students resolve the spare oxygen molecule? |
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Compounds can only be separated into elements by chemical reactions. |
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What type of reaction is needed to separate a compound into elements? |
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