SNC2D Exam Outline 2025 PDF

SNC2D - Exam Outline ​ Parts and functions ​ Interactions of the systems for ce...

SNC2D - Exam Outline ​ Parts and functions ​ Interactions of the systems for cellular respiration UNIT 1: CHEMISTRY ​ Vascular tissues and movement of substances in xylem/phloem 1.​ Periodic Table ​ The periodic table: metals, metalloids and metals, group, period and ​ Transpiration family. ​ Meristematic cells ​ Valence electrons, shells UNIT 3: OPTICS ​ Evidence of a chemical change 1.​ Light reflection: 2.​ Chemical Bonds: Ionic and molecular (covalent) ​ Sources and nature of light ​ Properties of the two types of compounds ​ The electromagnetic spectrum ​ Lewis Dot diagrams ​ The laws of reflection 3.​ Nomenclature of chemical compounds: ​ Formula and names ​ The characteristics of the image in all three types of mirrors ​ Univalent ionic compounds. ​ Ray diagrams in curved mirrors ​ Multivalent ionic compounds. ​ Calculations: The Mirror and Magnification Equation ​ Polyatomic ions ​ Applications of mirrors 2.​ Refraction ​ Molecular (covalent) compounds ​ Definition 4.​ The law of conservation of mass: ​ Balance chemical equations ​ The refractive index 3.​ Lenses and their applications ​ Write the word, skeleton and chemical equations ​ The characteristics of the lenses 5.​ Types of chemical reactions: ​ Synthesis, decomposition, single and double displacement, combustion ​ The image characteristics of the two types of lenses ​ Product predictions. ​ Ray diagrams for lenses 6.​ Acids and bases: ​ Lens calculations ​ Properties ​ Applications of lenses ​ The pH scale, the indicators 4.​ The human eye: ​ Neutralisation reaction (acid + base) ​ Parts ​ Refraction of light UNIT 2: BIOLOGY ​ Conditions of the eye 1.​ Cell Theory 2.​ Cell Type: animal vs. plant UNIT 4: CLIMATE CHANGE 3.​ Terms/concept: ​ Natural and anthropogenic greenhouse gas effect ​ Hierarchy of organisation ​ Greenhouse gases ​ DNA, gene, chromosome ​ Sources versus sinks ​ Mutations ​ Graph analysis 4.​ Cancer : ​ Feedback loops (albedo effect and importance of polar ice caps) ​ Definition; causes; how it relates to cell cycle 5.​ The life cycle of a cell: ​ Air and ocean currents ​ Interphase ​ Proxy records (how to study climate) ​ Cell division (mitosis and cytokinesis) ​ Local and global effects/impacts of climate change ​ Photosynthesis - chemical reaction, location in cell ​ Cellular respiration - chemical reaction, location in cell ​ Definition and types of stem cells ​ The systems: digestive, respiratory and circulatory 1  SNC2D EXAM OUTLINE UNITS COVERED EXAM LAYOUT ​ Unit 1: Chemistry - 33 ​ True/False and Multiple Choice: 50 marks ​ Unit 2: Biology - 29 ​ Diagram/Short Answer: 25 marks ​ Unit 3: Optics - 26 ​ FIB/Short Answer: 25 marks ​ Unit 4: Climate Change - 12 ​ Total Marks: 100 marks 2