Flashcards
/GCSE
/Chemistry (Separate Science)
/OCR
/OCR GCSE Chemistry B (Twenty First Century Science) — Foundation (J258)

OCR GCSE Chemistry B (Twenty First Century Science) — Foundation (J258) Flashcards

Browse free OCR GCSE Chemistry B (Twenty First Century Science) — Foundation (J258) Flashcards by topic and specification point. Choose an area of the syllabus to start practising active recall with cards aligned to the OCR course.

Air and water

C1.1How has the Earth’s atmosphere changed over time, and why?View flashcards

C1.2Why are there temperature changes in chemical reactions?View flashcards

C1.3What is the evidence for climate change, why is it occurring?View flashcards

C1.4How can scientists help improve the supply of potable water?View flashcards

Chemical patterns

C2.1How have our ideas about atoms developed over time?View flashcards

C2.2What does the Periodic Table tell us about the elements?View flashcards

C2.3How do metals and non-metals combine to form compounds?View flashcards

C2.4How are equations used to represent chemical reactions?View flashcards

C2.5What are the properties of the transition metals? (separate science only)View flashcards

Chemicals of the natural environment

C3.1How are the atoms held together in a metal?View flashcards

C3.2How are metals with different reactivities extracted?View flashcards

C3.3What are electrolytes and what happens during electrolysis?View flashcards

C3.4Why is crude oil important as a source of new materials?View flashcards

Material choices

C4.1How is data used to choose a material for a particular use?View flashcards

C4.2What are the different types of polymers? (separate science only)View flashcards

C4.3How do bonding and structure affect properties of materials?View flashcards

C4.4Why are nanoparticles so useful?View flashcards

C4.5What happens to products at the end of their useful life?View flashcards

Chemical analysis

C5.1How are chemicals separated and tested for purity?View flashcards

C5.2How do chemists find the composition of unknown samples? (separate science only)View flashcards

C5.3How are the amounts of substances in reactions calculated?View flashcards

C5.4How are the amounts of chemicals in solution measured?View flashcards

Making useful chemicals

C6.1What useful products can be made from acids?View flashcards

C6.2How do chemists control the rate of reactions?View flashcards

C6.3What factors affect the yield of chemical reactions?View flashcards

C6.4How are chemicals made on an industrial scale? (separate science only)View flashcards

Ideas about Science

IaS1What needs to be considered when investigating a phenomenon scientifically?View flashcards

IaS2What processes are needed to draw conclusions from data?View flashcards

IaS3How are scientific explanations developed?View flashcards

IaS4How do science and technology impact society?View flashcards