English National Curriculum - Science
Mission Objectives
Describe how the Earth's oceans were formed
Explain how oxygen increased in the Earth's atmosphere
Explain how carbon dioxide decreased in the Earth's atmosphere
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Words and meanings to learn
carbon dioxide (CO₂)
made up a large proportion of the early atmosphere, released by volcanic eruptions and responsible for contributing to the greenhouse effect
photosynthesis
process by which green plants and some microorganisms use sunlight to convert carbon dioxide and water into glucose and oxygen
oxygen (O₂)
a reactive gas in the atmosphere essential for respiration and combustion
calcium carbonate
a compound formed when carbon dioxide dissolves in water and reacts with calcium ions; used by marine organisms to make shells and skeletons
cyanobacteria
photosynthetic microorganisms (also called blue-green algae) that were among the first organisms to produce oxygen on Earth
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In her current work, Samantha embeds evidence-informed pedagogical principles such as retrieval practice, clear modelling, and effective sequencing to support high-quality curriculum design and professional development. She draws on assessment insight and common misconceptions to help teachers secure strong student understanding.
She is a former Head of Chemistry and Sixth Form Tutor at Ilkley Grammar School, with extensive Key Stage 4 and 5 experience, and an AQA examiner, giving her valuable insight into assessment standards and exam requirements.
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