Science Crossword Puzzles

which is the most present gas in air?, what are at the end of every bronchiole?, which lung is smaller?, what is the addictive and harmful chemical in …

the byproduct of anaerobic respiration in muscles, the type of respiration that occurs without the presence of oxygen, respiration occurs in the …

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, _ …

measures temperature, a problem for discussion or investigation, loose clothing in a lab can cause these, this unit is used to measure mass, this type …

the smooth inner layer of the heart, where the heart is located in the thoracic cavity, pointed end of the heart, middle (muscle) layer of the heart, …

the movement of water molecules from an area of high water concentration to an area of low water concentration through a semi-permeable membrane, the …

who are known for their knowledge in astronomy, device used for seeing faraway objects, written document used to represent the positions and movements …

a reaction that gives out energy, a reaction that takes in energy, made by a chemical reaction, used up in a chemical reaction, often produced by a …

muscle that helps your lungs pull in air and push it out, muscular tube through which food passes from the pharynx to the stomach, tiny air sacs in …

this process converts ammonia to nitrite and then to nitrate, this is the process by which nitrogen gas from the atmosphere is converted into ammonia …

capacity to cause change, disorder/randomness of a system, reaction in which free energy is absorbed, the energy molecule in cells, other term for …

controls what goes in and out of the cell, receives proteins from the er and packs them out to other parts of the cell, produces energy in plant …

single-celled organism that surrounds its food, one-celled organism that uses hair-like structures for movement, a collection of tissues that has a …

an inherited feature or characteristic, the number of chromosomes in your body cells, a chain of amino acids, a coiled up molecule of dna that is …

the explosive end of a super red giant, the amount of energy coming off the surface of a star, formed when hydrogen fusion begins and the energy in …

a dying phase of a star, _ nebula, what fire does, a heavenly body that produces its own heat, what stars do when they go supernova, the most common …

symbiotic relationship in which one species benefits while the other species is harmed, _ succession - change in the numbers and types of species that …

polysaccharide that plants use for structure and support, to hydrolyze a bond between two monomers, you would have to add a molecule of _ , -cooh is …

the flow of electrical charge, often through materials like wires, a complete path that allows electricity to flow, including a power source, wires, …

when two parallel wires carry currents in opposite directions, their magnetic fields _ each other, the galvanometer is connected in series with a …

structure of dna, one parent; no fertilization, segment of dna that codes for a trait, two parents; fertilization occurs, something an organism does …

it is a measure of the tendency of an atom to attract a bonding pair of electrons, it is a bond in which the distribution of electron between two …

water soluble protein; example: an enzyme, organic compound used to store energy; made up of carbon hydrogen and oxygen, a water transporting protein, …

it rotates to allow you to change the objective lenses, they magnify the specimen with a different power, either electric or a mirror. it passes …

pick the best conductor, what stops electricity from flowing?, when electricity flows it is called a, pick the best insulator, water is a conductor? …

the organ that pumps blood throughout your body, the organ where food is digested, the organ that helps you breathe, the organ that filters waste from …

water and electrolytes (gets rid of waist), gets rid carbon dioxide (lungs and diaphragm), lymphatic vesicles and lymph noes, the skin and its …

sweat glands, breaks down urea in sweat and causes odors, waterproofing protein, worst kind of burn, glands that produce oil, oil, skin cells, …

nucleotide that transfers energy directly to a cell's chemical reactions, two or more atoms bonded together, polysaccharide that makes up cell …

organelle that contains its own genome, and that is found in almost all eukaryotic cells, the nuclear division process that is involved in the …