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All Words (99 Words)

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Advanced Words (23 Words)

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Word List

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Word	Meaning	Advanced
hydrogen	n: the chemical element that is the lightest gas is colorless, odorless, tasteless, and combines with oxygen to form water
atom	n: the smallest unit of ordinary matter that forms a chemical element, composed of a nucleus and one or more electrons bound to the nucleus
outermost	adj: farthest from the center or the inside; located on or relating to the outer part or surface of something
atmosphere	n: the mass of air that surrounds the Earth; the pervading tone or mood of a place, situation, or creative work
exosphere	n: the outermost region of the Earth’s atmosphere or the atmosphere of another planet, where the density of molecules is extremely low, and the gas particles transition into space, characterized by a gradual transition from the Earth’s atmosphere to the vacuum of space
Atlantic	adj: relating to or located near the Atlantic Ocean, which is the second-largest ocean on Earth, located between the continents of North and South America to the west and Europe and Africa to the east
soil	n: the top layer of Earth in which plants grow
overcome	v: to succeed in controlling or dealing with something, such as a problem or difficulty; to defeat or overwhelm someone
gravitational	adj: relating to or caused by gravity (= the force that attracts objects towards one another)
roughly	adv: approximately but not precisely; with a violent manner
leak	v: to allow liquid or gas to get in or out from a hole or crack in a pipe or container
whale	n: a very large sea mammal that has a streamlined body and breathes through a blowhole on the head; a very large person; impressive in size or qualities
atmospheric	adj: about or located in the earth’s atmosphere
molecule	n: a group of two or more atoms held together by attractive forces known as chemical bonds
seep	v: to flow or leak slowly and gradually through small openings or spaces; to ooze or trickle out gradually
planet	n: any of the nine large celestial bodies that circle in the solar system; any celestial body that revolves around a star
stability	n: the quality or attribute of being firm and steadfast
sustain	v: to supply enough of what somebody or something needs to survive or exist; to accept as valid
extent	n: the point or degree or area to which something extends
imperfectly	adv: in a faulty or incomplete way
plumbing	n: the system of pipes, fittings, and fixtures that are used to distribute water and remove waste in a building or structure; the trade or profession of installing and maintaining such systems
spot	n: a particular location or place; a small round or roundish area, differing in color or feels from the surface around it
shaft	n: a long, narrow part or section of an arrow, hammer, golf club, etc.; a long, narrow passage consisting of the vertical part of a column
reservoir	n: a natural or artificial lake used to store water for community use; a large or extra supply of something
neglect	v: to not give enough care or attention to something; to leave something undone
abandon	v: to leave a place, thing, or person with no intention of returning; (noun) a feeling of extreme emotional intensity
underground	adj: under the surface of the ground; a secret group organized to achieve a specific purpose, such as overthrowing the government or occupying a force
greenhouse	n: a building with walls and roof made chiefly of transparent material, such as glass, for growing plants in
methane	n: a chemical compound with the chemical formula CH4 with no smell or color, often used as a fuel
crack	v: to break or cause to break without dividing into separate parts; (noun) a line on the surface of something along which it has separated without breaking
loose	adj: not securely fixed or fastened in place or able to be detached or separated from something
leaky	adj: having a hole or crack that allows liquids or gases to pass through it
scatter	v: to cause to separate and go in different directions
emit	v: to give off or send out something such as light, heat, sound, gas, etc.
estimate	v: to guess or calculate the cost, size, value, etc. of something
metric	adj: using or relating to the meter as a unit of length; a system of related measures that facilitates the quantification of some particular characteristic
innermost	adj: situated or occurring at the deepest or most central part or point; relating to one’s deepest or most private thoughts, feelings, or experiences
boundary	n: a real or imaginary line that marks the limit or extent of something and separates it from other things or places
core	n: the most essential or fundamental part of something
origin	n: the first existence or beginning of something
rotation	n: the action or process of moving in a circle around an axis or center
liquid	n: a substance, such as water or oil that flows freely and is neither a solid nor a gas
solid	adj: hard or firm; characterized by good substantial quality
magnetic	adj: having the properties of attracting or repelling certain materials containing iron or steel
barrier	n: a fence or other obstruction that makes it hard to move or get in; any condition that makes it difficult to make progress or to achieve an objective
cosmic	adj: relating to the universe or cosmos; vast or limitless
radiation	n: the energy that comes from a nuclear reaction in the form of rays, waves, or particles and that can be hazardous to health
insulate	v: to protect something by interposing material that prevents heat, noise, electricity, etc.
constantly	adv: all the time
surrounding	adj: that is near or around, or closely encircling something
mantle	n: a layer of rock between the surface and the core of a planet or moon; a loose sleeveless cloak or shawl; the responsibilities of an important position or job that passes from one person to another
tectonics	n: the study of the processes that shape the Earth’s surface, including the movements of tectonic plates, earthquakes, and volcanic activity
magma	n: molten rock that is located beneath the earth’s surface and can solidify to form igneous rock
molten	adj: in a liquid state as a result of being heated
solidify	v: to make solid, firm, or compact; to cause to become solid
disappear	v: to cease to exist or be visible
exposed	adj: having no protection or shield from something, such as bad weather, attack, or criticism
harsh	adj: severe and unkind; extremely tough and unpleasant to inhabit
ray	n: a narrow line of light, heat, or another form of energy
immediate	adj: happening or done without delay or occurring shortly after something else
emission	n: the act of production or sending out gas, heat, light, etc.
climate	n: the weather in a particular location averaged over some long period
structure	n: the way of construction of something and the arrangement of its parts, or a complex thing constructed of many parts
efficiently	adv: in a way that produces maximum output with minimum effort or expense
absorb	v: to take in a fluid or other substance gradually
radiate	v: to spread out or emit something, such as light or heat, in all directions
trap	n: a piece of equipment or hole for catching animals or people; (verb) to catch animals or people and prevent them from escaping
incredible	adj: unbelievable; enormous
carbon	n: a chemical element that can be found in pure form as diamond or graphite, and it is also an essential part of coal and oil and is found in all plants and animals
oxide	n: a chemical compound that contains at least one oxygen atom and one other element
comparable	adj: able to link the similarities or differences with others; similar or equivalent to someone or something
pound	n: the standard unit of money in the UK; the standard unit of weight equal to 16 ounces
coal	n: a combustible black or brownish-black sedimentary rock that is found below the ground and burnt to produce heat
extensive	adj: covering a large area; having a wide range
survey	n: an investigation of the opinions, behavior, etc. of a particular group of people, made by asking people questions
anthropology	n: the scientific study of humanity, concerned with human behavior, human biology, cultures, societies, and linguistics in both the present and past, including past human species
leach	v: to remove or drain away something from a material, usually by seeping or filtering, such as chemicals from soil or minerals from rock
toxic	adj: of or relating to or caused by a poison; poisonous
groundwater	n: water that is present beneath the surface of the ground, especially in soil or in pores and crevices in rock
contaminate	v: to make something impure, unclean, or poisonous by contact or mixture
ecosystem	n: all the plants and living creatures in an area and the way they affect each other and the environment
pump	v: to cause water, air, gas, etc. to move from one place to another by using mechanical equipment; to get or supply something such as money, information, etc. in significant quantities
cement	v: make fast as if with cement; (noun) a building material that is a powder made of a mixture of calcined limestone and clay, used with water, sand, and small stones to make concrete
depth	n: the distance between the top and bottom of something; between the top surface and a distance below it
government	n: the group of people with authority to control a country or state
defunct	adj: no longer existing, operational, or functioning; extinct or dead; obsolete or out of use
expense	n: the money, time, or effort incurred or required for something
historic	adj: famous or significant in history, or potentially so
dodge	v: to move quickly and suddenly to avoid something; to evade or sidestep
policy	n: a set of rules, guidelines, principles, or procedures that govern decision-making or action, often used in the context of business or government; a course of action or plan of action adopted or followed by an organization or individual to achieve a goal or objective
economical	adj: providing a satisfactory return on the money, time, or effort; not using more money, fuel, etc. than necessary
viable	adj: capable of being done as intended; able to succeed
concerted	adj: involving the joint activity of more than one person, government, country, etc.
fee	n: a sum of money charged for a particular service
coordinated	adj: effectively arranged or organized so that all the parts work smoothly or systematically together
oversight	n: the act of supervising or watching over something; a mistake caused by not paying enough attention to something
massive	adj: enormous amount; very heavy and solid
eliminate	v: to remove or get rid of someone or something
drill	n: a tool or machine used for making round holes or driving fasteners; a training or practice