Science Crossword Puzzles

is a group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce, the process of grouping things …

last name of the scientist who named "cells", scientific tool that allows us to examine tiny cells, jelly-like substance that surrounds the …

this type of root supports plants with wide, spreading roots, often found in tropical rainforests, roots that grow from stems or branches into soil to …

gas used up during aerobic respiration, gas produced during aerobic respiration, the site of aerobic respiration, the sugar used up during …

the tube connecting the mouth & nose to the lungs, bigger tubes that carry air in and out of the lungs, smaller tubes that carry air to the …

the smallest particle of an element that retains all the properties of that element, a chemical combination of two or more different elements, forms …

can be found in natural gas deposits, used in advertisement signs, chemical symbol is ar, found in earth's atmosphere and some meteorites, name of …

bonding where valence e- are delocalized, sharing of 2 e- between 2 nonmentals, covalent molecule with uneven distribution of valence e-, elements …

a thermodynamic quantity equivalent to the total heat content of a system, the speed at which a chemical reaction takes place, defined as proportional …

made of rna; where proteins form, an organism composed of two or more cells, outer layer of the cell that controls movement of materials into and out …

vital plant process that converts carbon dioxide and water into chemical energy and takes place in the chloroplasts, reverse of photosynthesis. a …

cells with 1 set of chromosomes, mitosis time when sisters pull apart, reproduction that needs no mate, part of inter-phase where dna is replicated, …

device used to measure heat changes in chemical reactions, energy change at constant pressure; symbolized by δh, reaction that releases heat to the …

what group are the alkaline earth metals in?, element found in fireworks, element used to extract oil and gas, element that can be found in ore mine, …

a soft, silvery-white metal that is highly reactive and is often stored under oil to prevent it from reacting with air (9), a radioactive element that …

property of metal to be easily broken into pieces or powder form, a mineral deposit containing enough metal to allow economical recovery of it, a type …

this describes covalent compounds as conductors, these molecular ions gain or lose one or more electrons (ionic) as their atoms share electrons …

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 …

co2 released into atmosphere from burning, decomposers break down carbon from dead organisms, co2 released into the atmosphere as waste from …

leaves, flowers, cones, and secondary stems grow at these points where a bud of meristem tissue divide and specialize to form these particular …

the idea that all living organisms are descended from a single ancestor or a small group of ancestors, the process through which species change over …

when warm air moves over cold air, force pushing on an area or surface, when warm air and cold air are pushing on each other, an instrument that is …

something that does not easily allow the transfer of heat or electricity, the standard measurement of energy, the amount of energy required to raise …

the observable traits of an organism, a cross between individuals that involves one trait, the type of inheritance where both alleles are fully …

a radiation absorbed dose, combining two smaller helium nuclei to get energy, the number of protons in an atom, atoms of the same element with a …

the tiniest possible unit of an element, has no charge, holds protons together in the nucleus, an object that attracts iron, nickel, and cobalt, a …

heterotroph; depends on primary producers for energy, autotroph; converts sunlight and chemical energy into energy used by the rest of food chain, the …

comes from things like the sun, light bulbs and candles. it bounces off of things and allows us to see, curved mirrors that allow us to see a wider …

the distance between two identical points on a wave, a smooth surface that reflects light to form images, a line that indicates the path of light, …

a large evergreen tropical tree that grows edible fruit. planted in the spring and in the fall it produces showy green leaves that have a yellow-green …