Atoms and Molecules Word Search
A free Atoms and Molecules word search you can play straight in the browser. The 12-word list draws on the terms and ideas of a school subject, hidden across a 15×15 grid in every direction. Drag through the letters to mark a word off.
Words to find: ATOM, MOLECULE, ELECTRON, PROTON, NEUTRON, NUCLEUS, ELEMENT, COMPOUND, MIXTURE, BOND, ISOTOPE, PERIODIC.
Every word on the list appears exactly once. Words can run forwards or backwards, so scan both directions before you move on.
Atoms and Molecules word list, defined
- 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.
- MOLECULE /ˈmɒlɪkjuːl/ (British); /ˈmɑːlɪkjuːl/ (US) · noun
- A molecule is the smallest electrically neutral particle of a substance that retains its chemical identity and consists of two or more atoms held together by chemical bonds. In some specialized contexts, a molecule can consist of a single atom, especially when describing noble gases. Related: particle, unit, entity, structure.
- 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.
- 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.
- 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.
- 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.
- COMPOUND /ˈkɒm.paʊnd/ (noun, adjective); /kəmˈpaʊnd/ (verb) · noun, verb, adjective
- As a noun, a compound is a thing made up of two or more parts combined into a whole, especially a chemical substance formed of two or more elements. As a verb, to compound means to make a problem or situation worse, or to combine things together. Related: combination, mixture, blend, composite.
- MIXTURE /ˈmɪkstʃər/ · noun
- A combination of two or more distinct substances, qualities, or kinds of things, especially one in which the components remain recognizable rather than forming a uniform whole. The word can also refer to the act of mixing. Related: blend, combination, mix, admixture.
- BOND /bɒnd/ (UK), /bɑːnd/ (US) · noun (also verb)
- A bond is a strong connection or tie linking people, groups, or things, whether emotional, physical, or financial. In finance, it specifically means an interest-bearing security issued by a government or company as a way of borrowing money. Related: tie, connection, link, attachment.
- 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.
- 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.
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