Science Crossword Puzzles

known as the red planet, the inner planets are also known as _ planets, the second largest planet in the solar system, envelope of gases surrounding …

changes solid to a liquid and liquid to a gas, special chemical that absorbs some colors and reflect others, microwave radiation will cook your …

a star that has expanded and cooled, resulting in it becoming much larger and cooler than it was before it expanded, a large ball of mostly hydrogen …

2 substances together, a compound breaks down into two elements, _ displacement is when two elements swap places, 5 types that are different depending …

earth's _ is rich in nitrogen and oxygen and it is the only world known to harbor life, _ , our home planet, is the third planet from the sun, _ …

the non-living parts of an ecosystem like sunlight and water, an organism that can make its own food, usually through photosynthesis, the natural home …

_ change - the transfer of thermal energy between two bodies which are at different temperatures, this is the phase of matter with no fixed shape but …

a chemical change caused by passing an electric current through a compound which is either molten or in solution, the positive electrode, the negative …

protein that regulates the cell cycle, division in sex cells 4 unique haploid cells, reproduction clone of parent, 3rd stage of mitosis separate to …

the science and technology of metals and alloys, this liquid can be used to help lubricate a cut, help a metal to resist corrosion and keep metals …

phenol's chemical name, ech, the heat of reaction in the cumene process is _ , ethylene dichloride, in a recent one-step process, toluene can be …

a change where new substances are formed, solid that forms when two solutions react, the gas produced when magnesium reacts with hydrochloric acid, …

a reaction that absorbs energy, a reaction that releases energy, a substance that can increase the rate of a reaction without being used up, the …

having the same molecular formula but different structural formulas or connectivity of their atoms, substituents that are on opposite sides of the …

stores energy in a chemical store, which it can release as heat, a change that does not form new substances, but changes the physical properties of …

a substance in which other materials dissolve to form a material, a term used to describe alkenes, name the first step in a radical reaction, when the …

the smallest particle of an element that retains all the properties of that element, a chemical combustion of two or more different elements, can be …

what forms when one substance dissolves in another substance, a well-tested explanation that has broad evidence and predictive value, the smallest …

to use a paper and funnel to separate a solid from a liquid, when a liquid turns into a gas, a liquid with tiny solid particle hanging in it, a very …

a method to separate certain metals like iron or steel, a branch of science where we study substances and mixtures, something physical that you can …

cations and anions lose/gain electrons to achieve this.., what is the only poly atomic that is a cation?, a negatively charged ion that forms by …

which precious metal is used in printed circuit boards?, what speeds up the rate of a reaction?, which metals are found in the central block in the …

hydrocarbon containing 1 double bond, formula r-cho, a chemical reaction where energy is released, faster reaction, _ ea, measure of a molecule's …

a saturated hydrocarbon with a general formula cnh2n, a group of similar compounds sharing a common general formula, the fourth alkane, the third …

these are used to show the charges of transition metals in an ionic bond, the rule that says atoms want to have a full outer shell, typically …

the particles in a _ are far apart and move quickly to spread out in the space, the particles in a solid are very close together and _ , when the …

a substance that contains one kind of atom and cannot be broken down into a simpler form, a substance made of two or more elements chemically combined …

the changing from vapor state to a liquid state, when a substance is cooled, the mass per unit volume of an object, the changing from liquid to a …

containing carbon atoms joined together in a ring that is not aromatic, an organic compound containing a benzene ring, movement of pair of electrons, …

this happens to the surface of an alkali metal when it reacts with oxygen, this gas is produced when an alkali metal reacts with water, sodium _ into …