Science Crossword Puzzles

a circular object that revolves on an axle and is fixed below a vehicle or other object to enable it to move easily over the ground, land transporter …

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 …

a stable subatomic particle with a charge of negative electricity, found orbiting the nucleus of an atom, the name given to a horizontal row of the …

proceeds with a net release of free energy and is spontaneous, law of thermodynamics: energy of the universe is constant, release energy by breaking …

the temperature scale on which water freezes at 32 degrees and boils at 212 degrees, the ability of an object to transfer heat or electricity to …

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 …

long polymer made from repeating nucleotides, the 5 _ _ are adenine, guanine, thymine, cytosine, and uracil, _ _ is in the family of enzymes that …

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 …

used to moving things in the yard or job site, get things from a lower to a higher surface, used to cut, holds papers together, makes things able to …

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 …

cells or tissues that are swollen from water uptake, the powerhouse of cells, the process by which green plants synthesize food, the molecule that is …

shiny metal property, stretchy metal property, can be beaten into shape property, allows heat and electricity to pass through it, does not allow heat …

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 process of self-digestion where cells break down after death, a scientist who studies insects, often helping solve crimes, a writhing cluster of …

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 …

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 …

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

type of cells between seminiferous tubes that make testosterone, protective outside membrane of the sperm that gets into the egg, type of cell 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 …

meaning of ph, when acid reacts to base and produce salt and water, has a ph level of 7, an indicator that is colorless and turns to pink when …