免费闪卡牌组

预览卡片、选择科目，再下载打开就能学的牌组。每个页面都会清楚标明来源和许可证。

396 牌组 · 许可证

• Space and the solar system

  Science exam questions on the Sun, the Moon, the planets, stars and galaxies, and on what telescopes and spacecraft have found there.

  141 卡片 EN CC-BY-SA-4.0

• Astronomía y geografía

  Preguntas abiertas sobre el sistema solar, los planetas, las estrellas y la geografía física y humana del mundo.

  67 卡片 ES MIT

• Astronomia e geografia

  Perguntas abertas sobre o sistema solar, os planetas, as estrelas e a geografia física e humana do mundo.

  64 卡片 PT-BR MIT

• Astronomie und Geografie

  Offene Fragen zum Sonnensystem, zu den Planeten, zu Sternen sowie zur physischen und zur Humangeografie der Welt.

  62 卡片 DE MIT

• Observing the sky, orbits and gravity

  The celestial sphere and the constellations, the birth of astronomy from Ptolemy to Kepler and Newton, orbital motion, and the cycles of seasons, moon phases, tides and eclipses.

  61 卡片 EN CC-BY-4.0

• Black holes, galaxies and cosmology

  General relativity, curved spacetime and black holes, the Milky Way and other galaxies, quasars and dark matter, then the expanding universe, the Big Bang and the search for life elsewhere.

  60 卡片 EN CC-BY-4.0

• Astronomie et géographie

  Questions ouvertes sur le système solaire, les planètes, les étoiles et la géographie physique et humaine du monde.

  53 卡片 FR MIT

• The Sun and the stars

  The Sun's structure, its activity cycle and the nuclear fusion that powers it, then stellar spectra and classification, masses and sizes, and how distances to the stars are measured.

  45 卡片 EN CC-BY-4.0

• The solar system: planets, moons and small bodies

  Earth as a planet and the worlds around it — Venus, Mars, the giant planets, rings and moons — then craters and impacts, comets, asteroids, meteorites and the origin of the system.

  44 卡片 EN CC-BY-4.0

• Astronomy and geography

  Open questions on the solar system, stars and galaxies, and on the physical and human geography of the world: population and fertility, language families, religions, political geography, urban models and agriculture. Every card states a verifiable fact; no opinion, no calculation, no dated statistic.

  42 卡片 EN MIT

• Light, spectra and telescopes

  The electromagnetic spectrum, blackbody radiation, spectral lines and the Doppler effect, then the telescopes and detectors that collect light from radio waves to gamma rays.

  34 卡片 EN CC-BY-4.0

• Interstellar matter, star birth and star death

  The gas and dust between the stars, how stars form and how exoplanets were found, the main sequence and what follows it, then white dwarfs, supernovae, neutron stars and pulsars.

  32 卡片 EN CC-BY-4.0