Science: Hypothesis – a smart guess about what might happen, Experiment – a test to find out something, Observation – using your senses to watch and notice, Data – the facts and numbers you collect, Evidence – proof that shows something is true, Conclusion – what you decide after looking at results, Variable – something you change in an experiment, Microscope – a tool to see tiny things, Energy – the power that makes things move or work, Matter – anything that takes up space, Technology: Computer – a machine that stores and uses information, Internet – a way to connect computers all over the world, Software – the programs inside a computer, Hardware – the parts you can touch on a computer, Smartphone – a phone that can do many things, like a computer, Tablet – a flat, touch-screen computer, Robot – a machine that can do jobs by itself, App (Application) – a program you can use on a device, Artificial Intelligence (AI) – when machines “think” and learn, Virtual Reality (VR) – computer-made worlds you can see and explore, Engineering: Design – to make a plan for something, Blueprint – a detailed drawing or plan, Prototype – the first model or test version, Structure – something built, like a bridge or building, Machine – a tool that helps people do work, Bridge – a structure that connects two places, Invention – something new that is created, System – parts that work together, Innovation – a new way of doing something, Construction – the act of building something, Math: Fraction – a part of a whole (½, ¼), Decimal – a number with a dot (like 3.5), Geometry – math about shapes and space, Equation – a number sentence with an equal sign, Perimeter – the distance all around a shape, Area – the space inside a shape, Volume – how much space something takes up, Multiplication – fast adding of the same number, Division – sharing or splitting into equal groups, Probability – how likely something is to happen,

STEM DEFINITIONS

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