Selenium Word Search
Selenium, as a word search. 12 words drawn from the terms and ideas of a school subject sit hidden in a 15×15 letter grid, running in every direction. Drag across a word to claim it, and clear the board to finish.
Words to find: SELENIUM, SCIENCE, ELEMENT, ATOM, NUCLEUS, PROTON, NEUTRON, ELECTRON, ISOTOPE, VALENCE, PERIODIC, CHEMICAL.
Every word on the list appears exactly once. Words can run forwards or backwards, so scan both directions before you move on.
Selenium word list, defined
General dictionary meanings, not specific to this puzzle's theme.
- SELENIUM /səˈliːniəm/ · noun
- A chemical element of group 16 of the periodic table, with the symbol Se and atomic number 34, occurring in several allotropic forms. It is also an essential trace nutrient for humans and animals and is used in metallurgy, glassmaking, semiconductors, and dietary supplements.
- SCIENCE /ˈsaɪəns/ · noun
- The systematic study of the natural or physical world through observation, experimentation, and logical reasoning. It can also refer more broadly to any organized field of knowledge or to the body of knowledge produced by scientific study. Related: knowledge, learning, research, scholarship.
- ELEMENT /ˈɛlɪmənt/ · noun
- A fundamental or essential part of something larger; in chemistry and physics, a substance consisting of atoms all with the same atomic number that cannot be broken down into simpler substances by ordinary chemical means. Related: component, constituent, ingredient, factor.
- 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.
- NUCLEUS /ˈnuːkliəs/ · noun
- A nucleus is the central, typically rounded part of an atom or biological cell, containing genetic material and playing a central role in the cell's activity. More broadly, the term refers to a central, fundamental, or defining part of something. Related: core, center, centre, heart.
- PROTON /ˈprəʊtɒn/ (British); /ˈproʊtɑːn/ (American) · noun
- A positively charged subatomic particle found in the nuclei of atoms. In South Asian English, the word can also mean a person who supports a proposal, policy, or candidate. Related: hydrogen-1 nucleus, positively charged baryon, hydrogen nucleus.
- NEUTRON /ˈnjuːtrɒn/ · noun
- A neutral, electrically uncharged subatomic particle found in the nucleus of an atom and having a mass slightly greater than that of a proton.
- ELECTRON /ɪˈlɛktrɒn/ · noun
- A stable subatomic particle with a negative electric charge, found in all atoms and moving around the nucleus. Electrons are the primary carriers of electricity in solids and are responsible for chemical bonding. Related: negatron, subatomic particle, charged particle, beta particle.
- 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.
- VALENCE /ˈvæləns/ · noun
- In chemistry, valence is the combining capacity of an atom, determined by the number of electrons it can gain, lose, or share in forming chemical bonds. More generally and in specialized linguistic use, it can refer to attractive quality or to the number and kinds of grammatical elements with which a word can combine. Related: valency, combining capacity, bonding capacity, appeal.
- PERIODIC British /ˌpɪə.rɪˈɒd.ɪk/; US /ˌpi.əˈrɑː.dɪk/ · adjective
- Occurring at regular intervals or according to a recurring pattern; cyclical. In technical contexts, it can also mean relating to a recurring cycle, especially in mathematics, science, or chemistry. Related: regular, recurrent, recurring, cyclical.
- CHEMICAL /ˈkɛmɪkəl/ · adjective, noun
- As an adjective, relating to chemistry or the composition and reactions of substances. As a noun, a distinct compound or substance prepared by or used in a chemical process. Related: compound, substance, reagent, synthetic.
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