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Y7 Solar system

Key words

TermDefinition
astronomy The study of the universe
civilisation A society in a particular time and place
eclipse When one object obstructs another from view
equator Point at 90 degrees from the axis
hieroglyphics Pictures and symbols to communicate
codex (plural: codices) Ancient books containing hieroglyphics
comet An asteroid with an intergalactical orbit
satellite When one object circles another
planet An object large enough to make itself round by its own gravity
Solar System The system of planets orbiting the Sun
anticlockwise In opposite motion to a clock’s hands
revolution To spin once on its axis
axis The imaginary line about which an object turns
Poles The upper and lower points on the surface where the axis is
tilted Not completely vertical
altitude The angle measured from the horizon
clinometer Instrument to measure the altitude of the Sun
autumnal equinox From summer into winter when the day and night are equal length
sundial Using the sun to tell the time of day
Antarctica Land mass at the South Pole
Arctic Circle Ice mass at the North Pole
hemisphere From the equator to the pole (Northern or Southern)
seasonal Of the seasons – Summer, Autumn, Winter, Spring
atmosphere Layer of air above the Earth’s surface
phases The different shapes of the moon
waxes Increasing in shape size
wanes Decreasing in shape size
crescent Shape that the moon takes
solar Belonging to the Sun
annular A partial eclipse
elliptical In an oval shaped orbit
annulus Area of sunlight showing around the moon in an eclispe
lunar Belonging to the moon
scattered Spread out
orbit The path of motion of one object around another
asteroid Large masses less than planets in space
meteor Space rocks that burn up in the atmosphere
meteorite Space rock
constellation Groupings of stars
Milky Way Our galaxy (containing the Solar system)
galaxy A collection of star systems
Andromeda The nearest galaxy to the Milky Way
Created by: andrewweng0406
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