Astronomy and outer space - IELTS lexical resource
IELTS vocabulary and collocations for space-related topics. These could be useful for related essays. Please note that US spelling is used throughout.
Vocabulary
- Astronomy
- Celestial
- Weightless
- Space shuttle
- Space station
- Satellite
- Black hole: A space with such gravitational force that light can't even escape from it.
- Solar system
- Universe
- Spacecraft
- Planet
- Outer space
- Cosmos
- Crater
- Launch
- Dwarf planet: Similar to a planet, but too small. E.g. Pluto
- Galaxy: A large number of solar systems held together by gravity.
- Earth
- Astronaut
- Milky Way: A spiral galaxy. A broad band of light in the sky is caused by a massive collection of "stars" / solar systems.
- Light-year: A length unit equal to the distance that light travels in one year.
- Gravity
- Lunar: Related to the moon
- Terrestrial: The Earth that is distinct from planets or land distinct from water. OR an inhabitant of the earth (e.g. humans).
- Uninhabitable
- Unmanned
- Colonize
- Explore
- Propel
- Acclimatize
- Radiation
- Rocket
- Simulator
- Telescope
Possible collision objects
- Meteoroid: A space rock traveling through space
- Meteor: A meteoroid that enters the Earth's atmosphere and starts to burn. Also known as a shooting/falling star.
- Asteroid: Bigger than a Meteoroid. Between the size of a Meteoroid and a planet. A big space rock that could destroy a planet should they ever collide.
- Comet: Made of ice, dust, gas and some rocks ("dirty snowballs"). Has a tail of gas that lights up when it gets near the sun.
Material description
- Dense: Compact
- Permeable/Porous: Has many small holes through which liquid/air can go through E.g. Permeable to water or porous rock
- Constituent: Ingredient/component E.g. The main constituents are sugary greens.
- Fiber: Thin strand
- Raw: In its natural state E.g. raw materials
- Debris: Something that was destroyed and the rubble now floats around in space. Accumulation of loose rock fragments.
Collocations
- Solar radiation: From the sun
- Cosmic radiation: From space
- Celestial coordinates
Spelling test
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