Science Crossword Puzzles

earths atmosphere is made up of 78% _ and 21% oxygen, the first life developed here, this layer protects earth from harmful solar radiation, 70% of …

the _ is the primary source of scatter radiation, "radiation burn", controls the black and white, _ is a object that has been in contact …

the information collected during an experiment is called _ , the _ variable is the factor in the experiment that is being tested or the part that is …

substances that can't be broken down, tiny packets of electromagnetic radiation or energy, two or substances that have combined together …

mixture in which one substance consisting of microscopically dispersed insoluble particles is suspended throughout another substance, tightly packed …

a brain _ can happen if you drink or eat something that is cold, lobe that controls vision, lobe that controls voluntary movements, reasoning and …

an imaginary line from the north pole to the south pole that the earth spins on, an oval or egg shape; the shape of earth’s orbit around the sun, …

hydrocarbon containing 1 double bond, formula r-cho, a chemical reaction where energy is released, faster reaction, _ ea, measure of a molecule's …

a region of space having a gravitational field so intense that no matter or radiation can escape, the displacement of spectral lines toward longer …

this is when the earth orbits the sun once in approximately 365 days causing changes in seasons, there are 4 rocky and small planets: mercury, venus, …

the enzyme that assembles the rna molecule (8 letters), the single-stranded rna molecule carrying the genetic code (6 letters), the region on dna …

the two strands in dna run _ , the process by which dna is converted to rna, the first amino acid incorporated in a polypeptide, complementary base to …

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

_ 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 …

distance an object travels in a given unit of time, combination of all forces acting on the object, product of an object's mass and velocity, …

in the _ . both mechanical and chemical digestion take place, _ is chewed food mixed with saliva, the small flap of cartilage that closes over the …

3-7 carbon sugar, describes dihydroxyacetone, important metabolic intermediates, bond that occurs due to condensation and hydrolysis, has 2 …

special glasses to protect your eyes during lab work. , a tool that makes a flame for heating things in the lab. , a device to measure liquids …

a living thing that grows in soil, has roots, a stem, leaves, and often flowers, the part of a plant that supports the leaves and flowers and carries …

inventor of the light bulb, known for alternating current (ac) power, revolutionized car manufacturing with the assembly line, pioneers of the first …

substances that can't be broken down, a force that causes a bird to rise in the air against each other, a stream of electrical charges, a …

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 …

study of the very small, mass multiplied by velocity, the energy dependent on the object's position, the energy that includes both potential and …

external, protective coating that protects the body systems from the outside elements, collection of similar cells that perform a particular function, …

algae, protozoa, and fungi, fresh or salt water habitat, photosynthetic, unicellular or multicellular organism, corkscrew-shaped, spiral-shaped …

group of individuals of the same species that live in the same area, bacteria and fungi that break down materials, any living part of the environment …

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 …

they are in the middle, they are shiny, conductors, and malleable, they are on the right, dull, not conductors, and brittle, the most basic component …

it is the lightest and most abundant element in the universe, typically found as a gas. it is commonly used in fuel cells and plays a key role in …

a region of an atom that contains electrons. it's also known as an energy level, the total number of protons and neutrons in an atom, a subatomic …