🔬 Science 7 · Grade 6 · Cambridge Lower Secondary Science Stage 7

Unit 2: Materials and their structure

7 sections · 156 questions

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Sections

1. 2.1Solids, liquids and gasese.g. It flows and can be compressed: what is it? · 17 questionsPractice
2. 2.2Changes of statee.g. Read the thermometer · 16 questionsPractice
3. 2.3Explaining changes of statee.g. Why does a heated iron bar expand? · 16 questionsPractice
4. 2.4The water cyclee.g. Where does the energy for evaporation come from? · 16 questionsPractice
5. 2.5Atoms, elements and the Periodic Tablee.g. What is the symbol for sodium? · 32 questionsPractice
6. 2.6Compounds and formulaee.g. How many oxygen atoms are in MgCO₃? · 39 questionsPractice
7. 2.7Compounds and mixturese.g. Iron and sulfur: mixture or compound? · 20 questionsPractice