Demonstrate understanding of chemical reactions in context
You need to show you understand how chemical reactions happen in real-world situations—not just in a chemistry lab. You'll describe the chemicals involved (reactants and products), write equations for them, and explain how they connect to everyday contexts like rusting metal, fizzy drinks, or tooth decay.
You describe each reaction type with reactants, products, and an equation, then say how it connects to a real-world context.
You explain why the reactants and products matter, show how conservation of mass works in your examples, and explain how the reaction links to its context using evidence.
You discuss what the conservation of mass means for the context itself—for example, why it matters that nothing is lost when rust forms, or what happens to the mass when fuel burns and produces smoke.
Standards typically taken alongside or after this one. Same subject, grouped by level.