Science Crossword Puzzles
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 …
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 …
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 …
Brain & Behavior
cns: made up of the brain and spinal cord, synapse: place at which two neurons make a functional connection, excitatory: increases the probability that a …
Brain Structure and Function
hippocampus : we need this to form new memories, pre frontal cortex : last area to develop, hypothalamus : this controls our ans, basal ganglia : refines the …
Body Systems & Organs
large intestine : large canal that helps absorb water back into body and then eliminate the waste., nervous : system that transmits and receives information., …
Periodic Table Revision
atomic weight:original system for ordering elements (6, 6), group 1:soft, low density metals which are very reactive (5, 1), dmitri mendeleev:scientist who …
