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 …

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 …

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 …

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 …

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

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 …

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 …

a combination of substances not chemically bonded, a mixture where parts are visibly different, a mixture that scatters light but looks uniform, a …

an indicator, shows whether a substance is acidic, alkaline, or neutral, a solution with a ph value less than 7, changes colour to show the ph of a …

_ is the type of matter that makes up the object, is the ability to burn _ , an element/mineral _ , is the ability of two or more substances to …

a state where the forward and backward reaction rates are equal, increasing the number of collisions between molecules would _ the rate of the …

what is the name for an ultrasound of the heart?, what is the ability to see fine detail in an image?, what is the amplification applied to the …

stem, roots and _ are parts of a plant, the leaf _ is usually the largest part of the plant, leaves obtain a green substance called _ that absorb …

enzyme that carboxylates acetyl-coa in fatty acid synthesis, multi-enzyme complex responsible for fatty acid synthesis, protein to which growing fatty …

the study of motion, the study of how things move, a coordinate system used to describe the motion of an object, a portion of a larger motion that we …

combination of two substances, anti-pollution masks are based on this separation method, ability of a substance to dissolve in a liquid, time off that …

newton's _ law - an object in motion will remain in motion, an object at rest will remain at rest unless acted on by an unbalanced force, a place …

name given to waves used to carry any type of signal. (6), short for charge-coupled device, an electronic device that creates an electronic signal …

number of organisms that are dying in a population, number of births, having many offspring increases the chance that some of them will survive, …

organelle where atp is produced, structure that packages and modifies proteins for export, protective layer outside the cell membrane in many …