Science Crossword Puzzles

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 …

_ are shown to the right of the arrow, what does the arrow mean in a chemical equation?, _ are shown on the left of the arrow, a tool used to …

a particle with a positive charge, an uncharged atomic particle, a particle that is found in all atoms, total numbers of neutrons and protons in a …

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 negatively charged subatomic particle occupying orbitals, a region of space that can hold a maximum of two electrons, a species containing one or …

this is a number that indicates the ability of an atom to attract electrons from another atom., this is the positive subatomic particle, this is the …

the change of state from solid to liquid, the state of matter where particles move fastest, the state of mater where the particles are fixed in …

the mass in grams of one mole of any pure substance, a statement using chemical formulas to describe the identities and relative amounts of the …

type of protein that associates with eukaryotic dna and structurally organizes chromosomes, process by which cells become specialized during …

(plant part) contains pollen sacs which produce pollen grains, (plant part) supports the anther, (plant part) place where the pollen grains land, …

male reproductive part of the plant, present in the air and are covered by a hard protective coat to bear low humidity and high-temperature …

bone structure protecting the brain, thigh bone, the longest bone in the body, shinbone, located in the lower leg, smaller bone alongside the tibia, …

a step by step list of how to carry out the experiment, a trial where all the variables are held constant. a control is used as the standard of …

used to transport liquids by the drop, a thin flat piece of glass used to hold objects for examination on a microscope, protects your eyes in lab, …

a thick and sticky clump of dried blood that stops blood from flowing through a blood vessel, determined by the presence or absence of certain …

friction is a _ that opposes the motion of objects, when two surfaces of two objects rub against each other, _ exists, friction always acts _ the …

substance that does the dissolving, substance that dissolves, a mixture of substances where one is dissolved into the other, has ability to dissolve, …

when you suddenly grow taller during puberty, male body parts that get bigger and start making sperm during puberty, girls get this once a month once …

electrons are found here, number of protons in a nucleus of an atom, positively charged ion, particle in an atom's nucleus with no charge, …

mass /volume, a method to find the volume of an irregularly shaped object, water has a density of.., smallest part of an element with properties of …

f (8), fe (4), na (6), ca (7), as (7), at (5), c (6), ne (4), pb (4), n (8), o (6), he (6), p (10), h (8), zn(4), be (9), k (9), hg (7), ni (6), ag …

the process of turning from liquid into vapour, process of separation of liquid from solid and other immiscible (non-mixing) liquids, method of …

a material (such as wood, oil, or gas) that is burned to produce heat or energy, gases or other substances sent out into the air, often from factories …

primary products for gasoline blending, 40% to 50%, most hydrocracker processes, hydrogenation, types of molecules that easily convert to aromatics in …

solid to gas, highest temperature in pressure where a pure substance can exist at a vapor/liquid equilibrium, a measure of a sample's average …

consists of more than one substances, something that has mass and volume, the process that a gas turns into liquid, apparatus that is used to …

organelle that digest, wastes, cell parts and foreign particles, an organism made up of cells that have a nucleus enclosed by a membrane, organelle …

what type of surface to volume ratio do cells need?, what type of cell is shaped like a tube to float?, type of cell that is a circle and needs to be …

secrete thyroxin which regulates the metabolism, how much does the average horse's heart weigh, the act of breathing, the function of this body …

where most chemical reactions occur, site of respiration, controls the cell and contains dna, where cell sap is stored, supports plant cells, site of …