Hydrogen Word Search
Play a Hydrogen 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: HYDROGEN, PROTON, ELECTRON, NEUTRON, MOLECULE, COMPOUND, ELEMENT, ISOTOPE, REACTION, EQUATION, BALANCE, CATALYST.
Words run in any of eight directions, backwards included — if one refuses to turn up, try reading the grid right to left.
Hydrogen word list, defined
- HYDROGEN /ˈhaɪdrədʒən/ · noun
- A colourless, odourless, tasteless, highly flammable gaseous element that is the lightest of all elements and the most abundant in the universe. Related: gas, element, fuel.
- PROTON /ˈproʊtɑːn/ · noun
- A subatomic particle that has a positive charge and is found in the nucleus of an atom. It is one of the three main components of an atom, along with neutrons and electrons. Related: ion, particle, subatomic particle, nucleon.
- 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.
- NEUTRON /njuːtrɒn/ · noun
- A subatomic particle with no electric charge and a mass slightly greater than that of a proton. Neutrons are found in the nucleus of an atom and play a key role in nuclear reactions. Related: proton, electron, ion, nucleus.
- MOLECULE /ˈmɒljʊkəl/ · noun
- A small group of atoms that are chemically bonded together, representing the smallest unit of a chemical compound that retains the properties of the compound. Related: compound, chemical, substance, element.
- 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.
- 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.
- ISOTOPE /ˈaɪsoʊtəp/ · noun
- An atom of an element that has a particular number of neutrons in its nucleus, leading to a different atomic mass from other atoms of the same element. Related: nuclide, radionuclide, isobar, isomer.
- REACTION /riːˈækʃən/ · noun, verb
- A natural response to a situation or stimulus, or a chemical change that occurs when a substance reacts with another substance. A feeling or emotion that is caused by something. Related: response, response, outcome, result.
- EQUATION /ɪˈkweɪʒən/ · noun
- A statement in mathematics asserting that two expressions are equal, typically containing one or more variables. More broadly, the act or process of equating one thing with another. Related: formula, expression, statement, identity.
- BALANCE /ˈbæləns/ · noun
- An even distribution of weight enabling someone or something to remain upright and steady; more broadly, a condition in which different elements are equal or in the correct proportions. Related: equilibrium, stability, poise, evenness.
- CATALYST /ˈkætəlɪst/ · noun
- A substance that increases the rate of a chemical reaction without itself being consumed or permanently changed; more broadly, a person or thing that precipitates an event or change. Related: stimulus, impetus, spark, catalyzer.
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