Science Crossword Puzzles

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 …

the rigid outer covering of plant cells, the jelly-like substance fills the cell and contains various organelles, the term for the sum of all chemical …

this refers to a cell's watery surroundings, this describes the main structure of a cell membrane, this model of the cell membrane includes embedded …

proteins in the plasma membrane that carry out final stages of starch and protein digestion in small intestine, the mesh-work surrounding animal …

model in which proteins and a lipid bilayer exist side by side without covalent bonds between them, one of the three classes of proteins; also known …

a component that is dissolved and which is present in lesser amount, universal solvent, mixtures having a uniform composition throughout their bodies …

_ potential energy is due to an object's shape, si unit that means the amount of energy needed to apply a force of 1 newton over a distance of 1 …

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

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

period during rotation when earth is facing the sun and it is lighted, includes the 4 compass points of north, south, east and west, period during …

positively charged particle, high energy em wave, a neutral particle in the centre of a atom, unit of energy, negatively charge particle which orbits …

change in frequencies of alleles in a population across generations, pattern of evolution at or above the species level, probability of offspring …

molecules that control and regulate the cell cycle, cancerous cells can develop into large masses called--, the process of dividing the nucleus, …

an _ is a mixture made of two or more elements, at least one of which is a metal, when a neutral atom gains an electron, it gains negative charge and …

rna contains this sugar, rna has this nitrogenous base, rather than thymine, which is in dna, this initiator codon in mrna signals protein synthesis …

nutrient molecules passed through the wall of your digestive system into your blood, the large intestine ends in a short tube called the _ , the …

the basic structural and functional unit of life forms, the only type of cell used in mitosis, the process of the cell splitting for body cells, the …

shorter then microwaves, just greater then the red light, longest wavelength, a little bit shorter then radio but longer then infrared, very short …

the aqueous space outside the stacks of thylakoids, the process in which a single cell divides to form two daughter cells and the cell plate is …

set of three nitrogen bases that represents an amino acid; order of nitrogenous bases in mrna determines the type and order of amino acids in a …

face up, this synovial joint allows movement in one plane of motion (elbows, knees), this synovial joint allows movement in two planes of motion …

this scientist used x-ray diffraction to help determine the molecular structure of dna, these two scientists used the information already discovered …

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

breakdown of large, organic molecules into smaller, protein that function as biological catalyst, part of the enzyme that allows it to act as …

this type of motion occurs when planets appear to "wander" through the sky, head librarian at alexandria; calculated the circumference of …

a contact force transmitted through a rope or similar object when forces pull on the object's opposite ends, the pivot of a lever, a spear thrower is …

distance covered by an object in a unit time, uniform motion is observed when an object covers a particular distance with a constant velocity …

a force that moves an object closer, a force that pulls objects to the ground, a force that resists movement, a change in height between two objects, …

it consists of two mono-saccharide molecules joined together, sugars, starches, and cellulose, formed from glycerol and three fatty acid groups, only …

_ forces act between two objects that are physically touching, pressure applied to an object by another object e.g. picking up a pen, a force of …