Science Crossword Puzzles

smallest unit of matter, group of bonded atoms, charged atom or molecule, same element, different neutrons, chemically bonded elements, physically …

water in its solid form, condensed water vapor that falls to the earth’s surface. most precipitation occurs as rain, but also includes snow, hail, …

the black round parting the middle of your eye, of or related to the inside of your eye, see night blindness, a malignant tumor that forms on your …

phenol's chemical name, ech, the heat of reaction in the cumene process is _ , ethylene dichloride, in a recent one-step process, toluene can be …

shape, volume and mass are all constant, atoms are close but can slide around each other, atoms are spread out and move freely, solid when force is …

the process of obtaining raw materials such as oil, gas, or minerals, the transformation of raw materials into finished goods like boards or pipes, …

haloalkanes react with ...................... to make primary amines, dimethylamine is a stronger base than methylamine because it has more …

this is a material made from clay or sand. it has high heat resistance, also called “plating”. this process coats one type of metal with another …

a state where the forward and backward reaction rates are equal, increasing the number of collisions between molecules would _ the rate of the …

a sugar molecule found in a nucleotide of dna, the name of the bond that forms between amino acids in a protein molecule, nitrogenous base found only …

coiled shape of a dna molecule, the type of nucleic acid that occurs as a single strand, the formation of an exact copy of the dna in a cell, that …

unit of force, force that opposes motion e.g. tyres on a road, rate of change of velocity, distance divided by time, energy stored in raised objects, …

the only planet in our solar system that bears life, movement of one mass around another, located above the stratosphere, 1000 km above the …

the control centre of the cell, powerhouse of the cell, only found in plants, provides structure, where plants do photosynthesis, storage for the …

organelle where atp is produced, structure that packages and modifies proteins for export, protective layer outside the cell membrane in many …

a gas that burns with a pop sound, gas that turns moist blue litmus paper red due to its acidic fumes, pale green toxic gas, used for bleaching, gas …

all of space and everything in it, an oval or stretched-out circle shape, centre of the solar system, the distance light travels in one year, the path …

the process of attaching enzymes to or within a support or matrix, material that holds immobilized enzymes while allowing substrate flow, porous …

a german chemist who developed the (4n+2) pi electron rule, needed to catalyse the chlorination of benzene, a benzene ring that only contains an nh2 …

term for the ability to see the margins of abdominal organs, structure appears brighter than its surround tissues on ultrasound, areas without …

the part of the body that helps you think, helps us walk and run, helps us chew food, we use it to smell things, a sense we use to feel (optional …

the classification of organisms into hierarchies based on their characteristics and differences, the specific cell type of bacteria that lacks a …

cranium shape with bulging frontal bones and wide occiput, premature fusion of the skull that causes fetal cranium to become abnormally shaped, this …

the idea that for particles to react they must collide, proteins made by living cells, that acts as biological catalyst, where a liquid turns into gas …

fossilized tree resin that can trap and preserve organisms, often with their original soft tissues intact, a type of fossil preservation where the …

not yet extinct, but close, what all species share, similar structures showing common ancestry, four-legged animals with common fishy ancestor, stage …

a noble gas used in some types of lighting and found in the atmosphere, a heavy metal often used in batteries and historically in pipes and paints, a …

male part of the flower which produces pollen grains, female part of the flower which receives pollen grains, protects and contains ovules. develops …

an organism which requires 5-10% carbon dioxide to grow, grows best in oxygen but can survive in any atmosphere, the genus of the most common bacteria …

a compound containing hydrogen and carbon only, a reaction in which energy is transferred from the reactants to the surroundings. the temperature of …