Radon Word Search
Play a Radon word search free online. We built the 12-word list around the terms and ideas of a school subject, then scattered it across a 15×15 grid — horizontal, vertical and diagonal. Find them all to clear the board.
Words to find: RADON, RADIOACTIVE, RADIATION, NUCLEAR, DECAY, ALPHA, BETA, GAMMA, IONIZATION, ISOTOPE, ATOM, EMISSION.
Diagonals are where most players stall. Once you are down to the last word or two, sweep the diagonals deliberately.
Radon word list, defined
General dictionary meanings, not specific to this puzzle's theme.
- RADON /ˈreɪdɒn/ (British); /ˈreɪdɑːn/ (US) · noun
- A colourless, odourless, radioactive noble gas that occurs naturally in soil and rock and can accumulate in buildings. Exposure to radon is a significant cause of lung cancer, particularly in people who smoke. Related: radioactive gas, radon gas.
- RADIOACTIVE /ˌreɪ.di.oʊˈæk.tɪv/ · adjective
- Having unstable atomic nuclei that spontaneously emit ionizing radiation. Informally, extremely exciting, intense, or dangerously attractive.
- RADIATION /ˌreɪ.diˈeɪ.ʃən/ · noun
- The emission or transmission of energy as electromagnetic waves or particles, especially as a potentially harmful form of ionizing radiation. In medicine, the term also refers to treatment using radiant energy, such as X-rays or radiation therapy. Related: emission, rays, irradiation, radioactivity.
- NUCLEAR /ˈnjuː.klɪər/ (British); /ˈnuː.klɚ/ (US) · adjective; informal noun
- Relating to the nucleus of an atom or to energy and weapons produced through nuclear reactions. In figurative use, it means central, fundamental, or concentrated around a core. Related: atomic, radioactive, thermonuclear, radiological.
- DECAY /dɪˈkeɪ/ · verb and noun
- To decay is to rot or decompose through natural processes, or to decline gradually in quality, condition, or strength. As a noun, decay refers to the state or process of rotting, decomposition, or gradual deterioration. Related: rot, decompose, deteriorate, wither.
- ALPHA /ˈælfə/ · noun
- The first letter of the Greek alphabet (Α, α). More broadly, the first or most dominant item in a series, or an animal ranked highest in a social hierarchy. Related: beginning, first, leading, dominant.
- BETA /ˈbiːtə/ (British), /ˈbeɪtə/ (US) · noun, adjective
- The second letter of the Greek alphabet (β, β). More broadly, it denotes the second in a series or a preliminary, testing stage of something — as in software released to users for evaluation before final launch. Related: trial, preliminary, draft, prototype.
- GAMMA /ˈɡæmə/ · noun
- The third letter of the Greek alphabet (Γ, γ), used in mathematics, physics, and statistics to denote a third item in a series or specific quantities such as gamma rays, the gamma function, and the gamma distribution. It also denotes the third member of any ordered group.
- IONIZATION /ˌaɪənəˈzeɪʃən/ · noun
- The process of converting atoms or molecules into electrically charged particles called ions, typically by removing or adding electrons. It may occur naturally, as in the ionization of gases by radiation, or be induced artificially, as in a gas discharge tube.
- ISOTOPE /ˈaɪsoʊˌtaʊp/ · noun
- An isotope is one of two or more forms of the same chemical element that have identical numbers of protons but different numbers of neutrons. Isotopes therefore have nearly identical chemical properties but different atomic masses and may differ in stability and radioactivity.
- ATOM /ˈætəm/ · noun
- The smallest unit of an element that retains the chemical properties of that element, consisting of a nucleus of protons and neutrons orbited by electrons. More broadly, the tiniest conceivable particle or amount of something. Related: particle, molecule, unit, speck.
- EMISSION /ɪˈmɪʃən/ · noun
- The act or process of discharging something — such as gas, light, heat, sound, or radiation — into the surrounding environment. It also refers to the substance that is discharged, most commonly in discussions of pollution and greenhouse gases. Related: discharge, release, outpouring, exhalation.
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