Science Crossword Puzzles
Space Race
apollo 1: first us mission to have casualties , apollo 13: us mission that got hit by a meteor , columbia: space shuttle that burned up on re-entry in 2003 , …
Organic Chemistry
alkane :saturated hydrocarbon the general formula cnh2n+2 (6), alkene :unsaturated hydrocarbon whose general formula is cnh2n (6), cracking :the reaction used …
Transport Across Membranes
diffusion: process of movement of molecules under a concentration gradient, hydrophilic: substances that have an affinity for water often because of the …
DNA / Mutations Vocabulary
dna: double helix molecule containing genetic information that makes up a chromosome, pyrimidines: cytosine and thymine, neutral mutation: the changes in the …
Digestive and Respiratory Systems
stomach : it produces an acid that digests proteins., oesophagus : organ that connected pharynx and stomach., liver : it produces bile, epiglottis : prevent …
Space, Sun, Earth, Moon
new moon: when the moon is not visible from earth., sun: what the earth orbits., moon: what orbits the earth., rotate: what the the moon does in 28 days., …
Chemical Changes and Electrolysis
acid : when dissolved in water, its solution has a ph value less than 7. acids are proton (h+ ion) donors, alkali : its solution has a ph value more than 7, …
Biotechnology
transposons : jumping genes, elisa : preliminary test for hiv, flagella : organ used for locomotion in bacteria, salmonella : this genus cause typhoid fever, …
Reaction Rates & Equilibrium
products: these substances are made in reactions, catalysts: these substances increase the rate of a reaction but do not get used up, enzymes: these proteins …
Lifecycle of a Star
proto star : the earliest formation of a star, red giant : a luminous giant star in the late stages of its evolution, black hole : a region of space with …
Deoxyribose Nucleic Acid - DNA
dna : deoxyribose nucleic acid; helical molecule that carries the genetic information of an organism and is passed from parent to offspring., gene : a segment …
Physical and Chemical Change
chemical bond : an attractive force that holds two atoms together, chemical change : a change in matter that forms one or more new substances, combustion : a …
Temperature and Heat
temperature : degree of hotness or coldness of an object, expansion : increase in size, volume, or length of a substance due to the increase in its temperature, …
Types of Energy
chemical: stored in food or fuel., mechanical: objects in motion., electrical: particles moving along a wire., elastic: objects that are stretched have this …
Toxicology
narcotic : drug that produces sleep or ams, antidote : substance that is used to neutralize or counteract a poison., addiction : state of overwhelming obsession …
Seeds and Germination
sunlight: this is not needed in germination, seed: i can be found in a fruit, shrivels: this happens to the seed after the embryo grows, food store: food for …
Evolution and Natural Selection
gene flow : the movement of genes into or out of a population, extinction : the dying out or extermination of a species, viruses : replicates only inside the …
