coauthor: One in every of a gaggle (two or extra folks) who collectively had ready a written work, comparable to a e book, report or analysis paper. Not all coauthors might have contributed equally.
compound: (typically used as a synonym for chemical) A compound is a substance fashioned when two or extra chemical components unite (bond) in fastened proportions. For instance, water is a compound made from two hydrogen atoms bonded to 1 oxygen atom. Its chemical image is H2O.
focus: (in chemistry) A measurement of how a lot of 1 substance has been dissolved into one other.
crater: A big, bowl-shaped cavity within the floor or on the floor of a planet or the moon. They’re usually attributable to an explosion or the impression of a meteorite or different celestial physique. Such an impression is usually known as a cratering occasion.
glass: A tough, brittle substance comprised of silica, a mineral present in sand. Glass often is clear and pretty inert (chemically nonreactive). Aquatic organisms referred to as diatoms construct their shells of it.
hydrogen: The lightest ingredient within the universe. As a fuel, it’s colorless, odorless and extremely flammable. It’s an integral a part of many fuels, fat and chemical substances that make up dwelling tissues. It’s made from a single proton (which serves as its nucleus) orbited by a single electron.
ion: (adj. ionized) An atom or molecule with an electrical cost as a result of loss or achieve of a number of electrons. An ionized fuel, or plasma, is the place the entire electrons have been separated from their dad or mum atoms.
liquid: A cloth that flows freely however retains a continuing quantity, like water or oil.
lunar: Of or referring to Earth’s moon.
molecule: An electrically impartial group of atoms that represents the smallest attainable quantity of a chemical compound. Molecules could be made from single kinds of atoms or of various sorts. For instance, the oxygen within the air is made from two oxygen atoms (O2), however water is made from two hydrogen atoms and one oxygen atom (H2O).
moon: The pure satellite tv for pc of any planet.
observatory: (in astronomy) The constructing or construction (comparable to a satellite tv for pc) that homes a number of telescopes.
on-line: (n.) On the web. (adj.) A time period for what could be discovered or accessed on the web.
oxygen: A fuel that makes up about 21 % of Earth’s ambiance. All animals and lots of microorganisms want oxygen to gasoline their development (and metabolism).
particle: A minute quantity of one thing.
poles: (in Earth science and astronomy) The chilly areas of the planet that exist farthest from the equator; the higher and decrease ends of the digital axis round which a celestial object rotates.
photo voltaic: Having to do with the solar or the radiation it emits. It comes from sol, Latin for solar.
solar: The star on the heart of Earth’s photo voltaic system. It’s about 27,000 light-years from the middle of the Milky Manner galaxy. Additionally a time period for any sunlike star.
telescope: Normally a light-collecting instrument that makes distant objects seem nearer by using lenses or a mixture of curved mirrors and lenses. Some, nonetheless, accumulate radio emissions (power from a unique portion of the electromagnetic spectrum) by a community of antennas.
wavelength: The space between one peak and the subsequent in a collection of waves, or the space between one trough and the subsequent. It’s additionally one of many “yardsticks” used to measure radiation. Seen gentle — which, like all electromagnetic radiation, travels in waves — consists of wavelengths between about 380 nanometers (violet) and about 740 nanometers (crimson). Radiation with wavelengths shorter than seen gentle consists of gamma rays, X-rays and ultraviolet gentle. Longer-wavelength radiation consists of infrared gentle, microwaves and radio waves.