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Chemistry Crosswords

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Title Instructions / Description Sample Puzzle Hints Difficulty
Chemistry Examples are solids, liquids, or gases.. It has a neutral charge.. The measure of how much. The basic building block of all matter.. The resistance from being scratched, dented, etc.. Older Children
Types of Chemical Reaction Circle the vocabulary word below When the reaction occurs in a liquid solution, the solid formed is called the 'precipitate'. . the chemical equation that shows the chemical reaction needs to be balanced.. a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.. a substance that takes part in and undergoes change during a reaction.. a substance that is formed as the result of a chemical reaction. . Big
Solid, Liquid, Gas the state of water in which it is an invisible gas. particular kind of material. changes states from a gas to a liquid, mainly due to the temperature getting cooler. a change in the size, shape, or color of a substance that does not change it into a different substance. anything that takes up space and has weight. Older Children
Chemistry of Life: Part 1 _______ are a type of lipid which can act as hormones in the body (through hormone synthesis) and that make up cell membranes.. _______ make up the lipid bilayer of all cell membranes; generally consist of two hydrophobic fatty acid 'tails' and a hydrophilic 'head' containing a phosphate group.. _______ carbohydrates store energy.. _______ acid (DNA) helps code and carry hereditary information.. _______ are simply proteins with a sugar atteched to them and are similar to functional proteins.. Hard
Chemistry in Cubes an important class of liquid crystal which form when the solid is heated . the process in which molecules make the transition from vapor to solid directly. the said reason for the drastic decrease in Napoleon' army and for his defeat; the term used to call the random growth of the microcrystals of gray tin, which has a tetragonal structure, that weakens the metal and makes it crumble. a measure of a fluid's resistance to flow. the intermolecular attraction between like molecules . Hard
Solids, Liquids and Gases This is a very dangerous type of gas.. This is what we see in the winter.. This is the last step in the water cycle.. This is what we breath out.. A type of gas that we need to live.. Older Children
Chemical Reactions Type of reaction in which an element or compound reacts with oxygen. representation of a chemical reaction. one element replaces a second element in a compound. 2HgO= 2Hg+O2 is an example of this type of reaction. AgNO3+NaCl=AgCl+NaNO3 is an example of this type of reaction. Big
Chemistry Of or relating to a body having fewer electrons than protons. is a separation technique that is used to separate. a solid that has dissolved in a liquid and made a solution. each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei. horizontal row of the periodic table.. all the material to be transfered from one place to another must make the trip. Hard
Chemistry of Life a slight attraction that develops between the oppositevely charged regions of near by molecules. attraction between molecules of different substances. a bond formed when one or more electrons are transferred from one atom to another. atom of an element that has a number of neutrons different from that of the otheratoms of the same element. attraction between molecules of the same substance . Hard
Concrete Construction Solve the puzzle using the word clues. A cut in a concrete surface made by a saw or router.. A handheld impact tool used to firmly press stamping mats or texturing skins into fresh concrete to ensure a complete imprint.. Formed, sawed, or tooled groove in a concrete slab used to regulate the location of cracking, or to allow expansion or movement of adjoining structures.. A breaking away of concrete at joints in floors or slabs.. A bonded layer of material, ranging from 1/4 to 1 inch or more in thickness, placed on existing concrete surfaces to beautify, level, or restore.. Hard
Chemistry Phase of matter with no fixed shape and can be poured. When particles are pressed together. Substance. Phase of matter with no fixed shape and particles spread out. A characteristic that describes something. Older Children
Chemistry a general process in which molecules separate or split into smaller particles such as atoms usually in a reversible manner.. is a substance that undergoes a distinct observable change when conditions in its solution change. is a measure of the concentration of a solute in a solution in terms of amount of substance in a specified amount of mass of the solvent. . the ion H3O+, consisting of a protonated water molecule and present in all aqueous acids.. beyond saturation. Older Children
Covalent Compounds electrons are __________. structure that shows how electrons are shared in a compound. atoms have a small difference in _____________, but high ____________.. group of atoms covalently bonded but carry a charge. what element only needs two electrons. Hard
Uses of Elements is the most abundant component of atmosphere.. used as semiconductor.. is extremely important in allowing us to digest our food properly and to absorb the many other elements that we need to survive.. is the most abundant element on Earth.. used in manufacturing cans, foils, and kitchen utensils, pipes, window frames.. Hard
Kinetic Molecular Theroy A force that stick particles of different matter together.. A conclusion drawn from observation that make sense of the observations.. A force that sticks particles of the same matter together.. Heat transfer from one substance to another by direct contact.. A measure of the total energy a substance has.. Older Children
Organic Chemistry what is the region on IR called that does not differ drastically between compounds?. what form of substituents does SN2 prefer?. which method of identification only focuses on functional groups?. what is the method of identification used to tell the difference between diastereomers?. another name for a SN1 reaction is?. Hard
Chemistry Part of an atom where electrons are found. Particle in an atom with no charge. Bond formed when atoms share electrons. Bond formed when atoms gain or lose electrons. Unit of matter. Big
Matter type of mixture that is uniform in properties and composition throughout. contain hydrogen which is replaceable by a metal. sharing of electrons between non-metals. formed by a transfer of electrons between a metal or non metal atoms. substance composed of two or more elements or compounds which are not chemically combine. Hard
The States of Matter something which has no fixed shape but has a fixed volume. something that powers a circuit. a property of metal. the process of a liquid turning into a gas.. the process of a gas turning into a liquid. Older Children
Changes in Matter matter with a defined volume but no defined shape. a chemical reaction that absorbs heat energy from surroundings. a chemical reaction that gives off heat energy. a change in matter that does not affect its chemical composition. a process that changes substances into new substances. Big
Quick Chemistry The element with an atomic mass of 18.998. The element with the atomic number 7. Safety wear during experiments. When matter melts it turns from solid to ........ The strong bond between two non-metals. Hard
Periodic Table of Elements Read all the definitions,and answer all questions to the corresponding box. The chemical element of atomic number 20, a soft gray metal.. A colorless, odorless unreactive gas that forms about 78 percent of the earth's atmosphere.. The chemical element of atomic number 17.Think of swimming pools.. The chemical element of atomic number 27, a hard silvery-white magnetic metal.. A colorless, odorless, highly flammable gas.. Big
Things You'll Find Around the Lab A few handy items you will find in a laboratory a dish that you can grow samples in. use this to heat up liquids. use this on top of a Bunsen burner. use these to protect your eyes in science. use this to store liquid. Older Children
Chemistry of Life the attractive force between two bodies of different substances that are in contact with each other. the force that holds molecules of a single material together. a fat molecule or a molecule that has similar properties; examples include oils, waxes, and steroids. a molecule, either protein or RNA, that acts as a catalyst in biochemical reactions. the minimum amount of energy required to start a chemical reaction. Hard
Matter and Change one or two letter reprensentation of an element. each horizontal row of the periodic table. has indefinite shape, flows and has a fixed volume. matter that has uniform and definite composition. properties of the material change but composition doesn't. Hard
The Elements This element's name comes from the Greek word meaning 'inactive'. All atoms of this element contain 91 protons. This element was named after a university in the United States. This element's chemical symbol is Yb. This element was named for a Russian Research Laboratory. Hard
Chemistry Horizontal rows of the periodic table. Matter that has an indefinite shape. Matter that has uniform composition. The process that separates a solid from a liquid in a heterogeneous mixture. Properties of a material change, but the composition does not. Hard
Elements strengthens bones. is the most electropositive element. is almost completely immune to chemical attacks at temperatures under 150 degrees. was named after one of the most influential scientists of the 20th century. spontaneously combusts in air when cut into fine pieces. Hard
Organic Chemistry Simplest organic compound composed only of the elements carbon and hydrogen. A property of a compound to exist in both left and right forms. Describes a series of compounds that differ from one another by a repeating unit. International Union of Pure and Applied Chemistry. All compounds that contain carbon. Hard
Nuclear Chemistry An element with an atomic number of 93 or greater in the periodic table that is produced in the laboratory by induced transmutation. The process of binding smaller atomic nuclei into a single larger and more stable nucleus. A radioactive decay process that occurs when an atom's nucleus draws in a surrounding electron, which combines with a proton to form a neutron, resulting in an x-ray photon being emitted. A high-speed electron with a 1- charge that is emitted during radioactive decay. The positively charged protons and neutral neutrons contained in an atom's densely packed nucleus. Hard
Chemical Interactions property characteristic of a substance4 that determines how it interacts with othe substances.. Table salt. A type of matter defined by a unique particle.. CO2. A substance that dissolves on a solvent to for a solution. Big
Special Mixtures evaporation. when a solution appears the same throughout. when a solid disappears into a liquid it .... the substance that disappears in a liquid. condensation. Older Children
Chemistry Any process which chemically breaks down or degrades metal. A chemical reaction in which a carbon containing compound reacts with oxygen to produce water, carbon dioxide, light, and heat. The corrosion of iron. A chemical reaction which absorbs heat. A type of reaction during which an acid and a base produce a salt compound and water. Hard
Thermochemistry Complete the puzzle below absorbs heat from the surroundings. used to measure heat flow in a reaction. the energy stored in chemical bonds of a substance. the part of the universe on which you focus your attention. releases heat to its surroundings. Hard
Chemistry In the mantle causes the plates to move. The theory of Alfred Wegner. Solution used to purify copper. Used to make fertilisers. A type of rock that is formed by the deposition of material . Hard
Nuclear Chemistry malfunctions in the offspring of an organism due to exposure to radiation. radioactive nuclides that can be introduced into organisms whose pathways can be traced by monitoring their radioactivity. combining two light nuclei to form a heavier, more stable nucleus. devices used to give particles very high speeds. a process in the atom where one of the inner-orbital electrons is captured by the nucleus. Hard
States of Matter going from a gas to a solid. a material with a fixed volume but not a fixed shape. going from a solid to a liquid. going from a solid to a gas. going from a gas to a liquid. Big
Chemistry The aldol condensation mechanism includes an example of this type of attack.. This causes light to rotate.. Theory that explains how coordination complexes form.. This equation describes the pressure-volume relationship in the adiabatic expansion of a gas.. Simplest form of the Schroedinger equation.. Hard
Matter Matter is made of ______ and molecules.. The attraction in a ________ state between molecules are close but not in a fixed position.. Solid, Liquid, Gas. When steam disappears it is called _______. A ________ is made of two or more atoms connected together. . Older Children
Chemical Reactions reaction of a nonmetal oxide and water produces this. a reaction of an element with oxygen will form this of the element. carbon compound reacts with oxygen producing large amounts of energy, water, and carbon dioxide. forms a metal oxide and carbon dioxide. reaction of a metal oxide and water produces a. Big
Heat and Temperature The point at which the motion of particles in a substance stops. A material that reduces the transfer of heat. The temperature at which water boils on the Fahrenheit scale. The temperature scale used in science laboratories. The temperature scale used in the United States. Hard
Particles when the particles are loosely packed together it is a ________. when a solid turns into a liquid it ____________. when a liquid turns into a gas it ________. the particles are pulled together by the _______. when a gas turns into a liquid it __________. Older Children
Chemıcal Elements and Water an Important constituent of bones . does not contain carbon. one of the most frequently occuring elements in living things. contains carbon. A component of two animo acids. Older Children
Chemistry Science a substance that is a fluid and it is melted. mass and bulk. gases liquids solids. when a new chemical is made by a rearrangement . a substance. Older Children
Carbon Chemistry of, relating to, or denoting compounds that are not organic (broadly, compounds not containing carbon). ester of glycerol and three fatty acids; general term for fats and oils. (of an organic compound, esp. a fat or oil molecule) containing several double or triple bonds between carbon atoms.. hydrocarbon molecule with only single bonds. of, relating to, or derived from living matter. Hard
Rates of Chemical Change A type of calorimeter which allows chemists to determine energy changes under conditions of constant volume.. It is a biological catalysts that are enormous protein molecules.. A reaction that absorbs energy. For this type of reaction, the energy absorbed is greater than the energy released.. The study of energy and energy tranfer is refer to _________________. . The enthalpy of formation of an element in its standard state is __________. . Hard
Hair Color The amount of moisture the hair can absorb. The middle layer of the hair shaft. Coarse, medium and fine. 20 volume developer will lift and___ hair color. Black or Brown pigments. Hard
Chemistry Consists of only one type of partical.. form a liquid from a solid as a result of heat. State of matter that changes shape according to the shape of its container but has a fixed volume. . Type of mixture you can only see one part. The smallest partical of matter that cannot be divided . Hard
Introduction to Organic Chemistry A component of natural gas.. __________ refers to the occurrence of two or more compounds having the same molecular formula.. __________ can be a biological or chemical term.. A _________ carbon is a atom which is bonded to four different groups.. Occur in a non-polar involving two atoms of similar electronegativity.. Older Children
Elements This element’s name comes from the German words for “white mass” . This element can absorb up to 900 times its own volume of hydrogen. All atoms of this element contain 60 protons. All atoms of this element contain 20 protons. This element is a primary component of emeralds. Big
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