Atom, The fundamental building block of all materials, consisting of protons, neutrons surrounded by a cloud of electrons, Compound, A sustance made up of two or more different atoms chemically joined, Electron, A samll negatively charged particle , Element, A substance made up of only one type of atom, Molecule, A cluster of atoms that makes up and element or a compound, Neutron, A particle with no electrical charge, Nucleus, A cluster of neutrons and protons at the centre of an atom, Proton, A positively charged particle in the nucleus, Hyrophobic , A surface that does not allow water to stick to it, Malignant, Rapidly growing dangerous cancerous cells, Anodising, A way of protecting aluminium from corrosion, Combustion, A rapid reaction with oxygen that releases energy in the form of heat or light, Endothermic, A chemical reaction that absorbs energy, Exothermic, A chemical reaction that releases energy, Conduction, A method of heat transfer, Condctor, A substance that allows heat to flow through it, Decibel (dB), Unit used to measure loudness, Bacteria, Microscopic, single-celled organisms, Contagious , Very easy to spread, Immune system, The system in your body that fights infection, Pathogen, An organism that causes disease, Abiotic factor, A non-living factor of the environment, Biotic factor, A living factor of the environment, Commensalism, Relationship between two organisms, where one benefits and the other is unharmed, Community, All living organisms in an ecosystem, Biodiversity, The range of different species in a community, Food chain, A sequence of organisms feeding on each other, Food Web, All the linked food chains in an ecosystem, Producers, Organisms that make food for the community.

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