Study Topics
Choose a Topic
Year 4 Advanced Standard
At Grade 9, you must evaluate — state not only how something works but also the strengths and limitations of models and methods. Always justify your reasoning with evidence.
DNA double helix structure, semi-conservative replication, mitosis stages, meiosis and genetic variation, natural selection and evolution.
DNA Structure
Mitosis
Meiosis
Natural Selection
→
The mole concept and Avogadro's number, stoichiometric calculations, ionic and covalent bonding, reaction rates and collision theory.
Mole Concept
Stoichiometry
Bonding
Reaction Rates
→
Current, voltage and resistance, Ohm's Law, series and parallel circuits, electrical power and energy, real-world circuit analysis.
Ohm's Law
Series Circuits
Parallel Circuits
Power & Energy
→