U8 Glossary Word Scramble
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Term | Definition |
Artificial satellites | satellites place into orbit by humans |
Asteroid | an irregular rocky object in orbit around the Sun between the orbits of Mars and Jupiter |
Asteroid Belt | a group of rocks that orbit the Sun in a band between Mars and Jupiter |
Comet | a ball of ice, dust and rock that orbits the Sun in a highly elliptical orbit |
Gas giants | the large planets of the outer solar system: Jupiter, Saturn, Uranus, Neptune |
Meteor | a meteoroid that enters Earth's atmosphere, usually creating a bright streak across the sky as it burns up; a shooting star |
Meteorite | a meteor big enough for part of it to hit the ground |
Meteoroid | a small particle or body of rock that orbits the Sun near Earth's orbit |
Milky Way | the galaxy in which the solar system is located |
Phases | different shapes of the Moon as seen from Earth |
Solar System | the Sun and all the planets, satellites, asteroids, comets and other bodies revolving around it |
Terrestrial | Earth-like, rocky. The terrestrial plants are Mercury, Venue, Earth and Mars |
Astronomer | a scientist who studies the stars, planets and other celestial objects |
Constellation | a group of stars which form a recognisable pattern in the night sky |
Dwarf planet | a small celestial body that is in orbit around the Sun and is nearly round in shape but with insufficient gravity to sweep its orbit |
Geocentric model | model of the universe with Earth at its centre |
Heliocentric model | model of the universe with the Sun at its centre |
Retrograde motion | apparent loop-like motion of the planets as seen from Earth |
Eclipse | the total or partial obscuring of one celestial body by another |
Ellipse | oval shape |
Gravitational force field | invisible field that causes masses to be attracted to each other |
Lunar eclipse | when the Earth blocks sunlight from reaching the Moon |
Orbit | path a planet takes around a star, or a moon or artificial satellite takes around a planet |
Penumbra | less dense shadow of an eclipse |
Satellite | object in orbit around another larger object |
Solar eclipse | when the Moon blocks sunlight from reaching Earth |
Tides | bulges in the ocean caused by the combined gravitational pull of the Moon and Sun |
Umbra | full, dark shadow of an eclipse |
Axis | the line connecting the North Pole with the South Pole. The Earth rotates around this axis |
Day | the time a planet takes to rotate once completely on its own axis |
Revolution | one complete orbit around the Sun |
Seasons | on Earth, summer, autumn, winter, spring; caused by the tilt of a planet's axis |
Year | the time a planet takes to revolve once around the Sun |
Created by:
AlexVaccher
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