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Introduction to evolutionEvolution is the slow change in living things over many generations. Small random differences between parents and offspring build up over time. Natural selection is the main driver. Traits that help…ScienceWikipedia
Introduction to quantum mechanicsQuantum mechanics is the set of rules that describes atoms and tiny particles. At that scale, things behave in ways that seem strange, like acting as both waves and particles. Scientists built…ScienceWikipedia
Introduction to general relativityEinstein's general relativity says gravity comes from mass bending the shape of space and time, called spacetime. Think of a heavy ball on a stretched rubber sheet: it dents the sheet, and nearby…ScienceWikipedia
Black holeA black hole is a very compact object whose gravity is so strong that nothing, not even light, can escape once it crosses the event horizon, the boundary of no return. Black holes usually form when…ScienceWikipedia
PhotosynthesisPhotosynthesis is a process where living things use light energy, usually from the sun, to make sugars they can use as fuel. In most cases, plants split water and release oxygen, and then turn…ScienceWikipedia

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