Science Crossword Puzzles

the _ happened 13.7 billion years ago when time, space, matter, and energy began to exist, the universe as we know it today began as a hot, dense …

the temperature at which liquid turns to a solid, the temperature at which a liquid boils and turns to vapour, breakability or flexibility, shininess …

surface resistance to relative motion, as of a body sliding or rolling, the force of attraction by which terrestrial bodies tend to fall toward the …

of or relating to the stars, everything that exists, including objects and energy, throughout time and space, a blocking of the sun's light that …

has a mass of only between 1.35 and about 2.1 times that of our sun, it is 60,000 times smaller than the sun, "failed stars", which form …

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

an idealized object that absorbs all incident electromagnetic radiation and emits radiation in a characteristic spectrum that depends only on its …

involved in biological rhythms, responses to the water and salt imbalance, develops t cells, stimulates the thyroid gland, stimulates the metabolism, …

earth's only natural satellite, the force that holds stars in a galaxy together, the time it takes light to reach earth from the sun, a measure …

a hypothesized for of energy, believed to be responsible for the universe's every increasing rate of expansion, a star formed from a cloud of …

the amount of matter or stuff that makes up and object, the state of matter in which the molecules slide past each other and move at a medium speed, …

two _ are better than one. let\'s think about it together, follow your _ !, _ up! things will get better, can i tell you something? i need to get …

long, whip-like structures used by bacteria for movement, a differential staining method to classify bacteria as gram-positive or gram-negative, the …

describes materials that allows some light to pass through, but not all, bending of light, describes materials that do not let any light pass through …

the contest between the usa and the soviet union to see which country would be the first to conquer space, one of the two americans who first walked …

the force that holds particles together in the atomic nucleus, a subatomic particle that has no change and that is found in the nucleus of an atom, a …

a particle with a positive charge, an uncharged atomic particle, a particle that is found in all atoms, total numbers of neutrons and protons in a …

anything that has mass and takes up space (volume), a description of an object, a _ property describes how a substance appears, feels, etc. and can be …

a devise that detects physical quantity, a step by step instructions that tell a computer to do something with data, the study of robots, a tiny robot …

this chronic condition inflames and irritates your digestive tract, the first part of the small intestine, a procedure that uses a flexible, lighted …

when data produces a straight line graph, when speed is increasing, when speed is decreasing, the rate of change of position, speed in a given …

blood vessel that carries blood away from the heart under high pressure, blood vessel that returns blood to the heart, often with valves, tiny blood …

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 …

energy stored in bonds of chemicals, and might be released in reactions, e.g. food and batteries, wasted energy, spread out, good at preventing waste, …

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

hcl(aq), _ acid, nh3, a group of atoms held together by covalent bond, clo-, so4, n3-, name of a constant = 6.02x10^23, substance being formed in a …

the change of state from solid to liquid, the state of matter where particles move fastest, the state of mater where the particles are fixed in …

when plant cells are swollen with water, when animal cells have collapsed due to water loss, release of cellular substances as secretions from cells …

the test for sugars, the test for starch, what we call someone who does not have enough of a vitamin or mineral, structures that break bigger …

outer layer of the cell, can control what goes in and out of the cell, make proteins for the cell, break down worn out cell parts, same as rough er, …