Science Crossword Puzzles

a gas that burns with a pop sound, gas that turns moist blue litmus paper red due to its acidic fumes, pale green toxic gas, used for bleaching, gas …

a gain of electrons (or decrease in oxidation number), the electrode where reduction occurs, a number representing the charge an atom would have if …

electronegativity decreases going this direction in a column in the periodic table, this type of vanderwaal\'s force are forces of attraction …

energy required to break a chemical bond and form isolated atoms, covalent bond when electrons are not shared equally, bonding that has an uneven …

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 …

increases kinetic energy of particles to increase rate of reaction, lowers activation energy to increase the rate of a reaction, decreases the space …

in _ displacement 2 ions change places to form 2 new compounds, _ reaction -1 compound forms 2 or more simpler substances, _ reaction - substance …

the state in which the concentrations of reactants and products remain constant over time, the principle stating that if a system at equilibrium is …

this is a subdiscipline within chemistry involving the scientific study of matter in its various forms that contain carbon atoms, carbon has this …

hormone which prepares the body for flight or fight responses, the type and amount of food consumed by people, an organ or tissue that makes a …

the innermost planet, mercury is the smallest planet, mercury doesn't have any, how many earth days is one year on mercury, mercury has no-, …

the process of fusion between a sperm cell and an egg cell, resulting in the formation of a zygote, an early-stage embryo consisting of a hollow ball …

metals of same group that has love densities, bonding between metals, structure that non-metals form other than simple molecular structure, the only …

cells that synthesize and secrete insulin, where hydrophilic hormones are soluble and lipophilic hormones bind to proteins, a type of hormone with …

venus has _ like earth's moon, venus has a very _ pressure, what color is venus?, venus is the _ planet in the solar system, it is very _ on …

water pollution, greenhouse gas emissions, and biodiversity loss, vetch, crimson clover, and red clover, how well plants use fertilizer for growth and …

hold tissue, blood vessels, or other structures securely during surgical procedures. temporarily occlude or close off blood vessels. control bleeding. …

this type of bone is where haversian units are located, type of fracture where the bone is broken or splintered into pieces, shallow depression, a …

nutrients and water move from the soil to the plant through the, plants cannot live without, what do plants and people need to live?, what part of the …

a chemical reaction between an acid and a base that takes place in a water solution, the characteristic of water that allows bases and acids to …

saturn's length of orbit (years), hexagonal storm at its north pole, home to the solar system's tallest mountain, only planet that spins on …

a hydrocarbon whose molecules contains at least one carbon– carbon double bond (11), hydrocarbons with similar boiling points separated from crude …

a naturally occurring rock that contains metal, the structure used to extract iron from its ore, the process used to extract more reactive metals like …

a reaction that absorbs energy from the surroundings, theory that for a reaction to occur, particles must collide with sufficient energy, a chemical …

_ acid is present in our body, an alkali is a type of _ , what has a ph of 7?, what color change could occur when hydrochloric acid is added to an …

can burn and cause cancer, atomic mass unit, an atom or group of atoms that has a positive or negative electric charge, a particle that has no …

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 …

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 …

this is a material made by mixing a metal with other things, the chemical called lime is made from calcium ..................., when we heat a …

a german chemist who developed the (4n+2) pi electron rule, needed to catalyse the chlorination of benzene, a benzene ring that only contains an nh2 …