Curriculum
Course: HIA International — Grade 6
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Curriculum

HIA International — Grade 6

Unit 1: Cells and organisms

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Unit 2: States of matter, atoms and compounds

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Unit 3: The Solar System and energy

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Unit 4: Living organisms and classification

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Unit 5: Metals, non-metals, acids and alkalis

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Unit 6: Sound, the Earth and eclipses

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Unit 7: Microorganisms and food webs

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Unit 8: Chemical reactions

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Unit 9: Electricity and circuits

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Quiz

2.6 Compounds and formulae — Visual & Photo Quiz

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  • Questions count: 1
  • Passing grade: B+
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1.
Look at the particle model of water (H₂O) and carbon dioxide (CO₂). What makes these substances compounds rather than elements?
Dr Dabour Hub Academy - figure 1
They consist of two or more different types of atoms chemically bonded together in a fixed ratio
They are physical mixtures that can be easily filtered apart
They contain only one type of atom
They exist only in the solid state
Part of Unit 2: States of matter, atoms and compounds — see every lesson and quiz in this unit.
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