The Periodic table of the elements is an infographic of all the known elements.
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Motion transmission & motion transformation systems(2025-2026)
Vocabulary: transmission, transformation, chain and sprocket, gear trains, rod & crank, etc. When we apply forces to things - be they o...
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Vocabulary: Diffusion, osmosis *from gr. 7: cell membrane, cytoplasm We now switch "Worlds" from the Material world to the Li...
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Vocabulary: Genes, chromosomes, DNA heredity The main point behind this topic is to understand the "order" in which DNA is organi...
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Vocabulary: Atom, molecule, element * Please note: this video below covers some extra material* - It first covers grade 7 material...
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