2017 Science Final Word Scramble
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Term | Definition |
mass | amount of matter in an object |
volume | amount of space an object occupies |
density | mass and volume; how tightly packed the molecules are |
independent variable | controlled by experimenter |
dependent variable | factor being observed in an experiment |
constant | factors that remain the same for all set-ups |
orbit (revolution) | path around the sun=year (or moon's path around a planet) |
rotation | spin on an axis=day |
solar eclipse | earth-moon-sun; sun is blocked |
lunar eclipse | sun-earth-moon; earth shadows moon |
humidity | amount of moisture in the air |
altitude | distance above sea-level |
latitude | distance from the equator |
evaporation | liquid to gas |
condensation | gas to liquid |
precipitation | rain, snow, sleet, hail; water returns to Earth's surface |
front | boundary between two air masses |
climate | weather over a period of time |
weather | state of the atmosphere at a given place and time |
lithosphere | solid rock portion of Earth's surface |
hydrosphere | water on Earth's surface |
Pangea | super continent |
weathering | break down of Earth's surface into sediments |
erosion | carrying away/transfer of Earth's sediments |
folding | bending of rock layers |
faulting | breaking of rock layers |
divergent boundary | two plates pull apart |
convergent boundary | two plates collide |
transform fault boundary | two plates slide past one another |
convection currents | heating and cooling of mantle-causes plates to move |
principle of superposition | deeper rock layers are older than surface layer |
unconformity | gap in geologic history due to missing rock layers |
evolution | change in a population of a species over time |
gradualism | evolution occurs slowly and steadily |
fossils | remains of life |
natural selection | survival of the fittest |
variation | differences between organisms of the same species |
adaptation | variations that aid in survival |
mutation | change in gene or chromosome that leads to variations |
asexual reproduction | one parent; identical offspring |
sexual reproduction | two parents; variety of offspring |
fertilization | union of sperm and egg |
mitosis | division of body cells=identical cells |
meiosis | creation of sex cells=1/2 as many chromosomes |
internal fertilization | occurs inside the body (humans) |
external fertilization | occurs outside the body (fish) |
chromosome | in nucleus; has genes; carries genetic information |
genotype | gene make-up of a trait (Tt) |
phenotype | appearance of a trait (tall) |
dominant | powerful gene; blocks recessive; capital letter |
recessive | weak gene; only shows up in homozygous form; lower-case |
hybrid | two different genes (one dominant, one recessive) |
homozygous | two of the same genes (either both dominant or both recessive) |
arteries | vessel that carries rich blood away from the heart |
veins | vessel that carries depleted blood back to the heart |
capillaries | vessel where exchange occurs |
red blood cells | transport oxygen and CO2 |
white blood cells | aid in immunity |
platelets | help heal wounds |
charge | gain or loss of electrons |
resistance | slows the flow of electricity |
voltage | causes energy to flow; battery |
potential difference | power difference between battery and wires |
current | speed of electric flow |
conductor | loosely bound electrons-allows electricity to flow |
insulator | tightly bound electrons-resists electrical flow |
current electricity | flowing electrons |
static electricity | gain or loss of electrons |
electrical discharge | result of electrons moving off a charged object |
ground wire | highly conductive, protective source for high electrical output |
permanent magnet | keeps magnetism |
induced magnet | temporary magnetism |
electromagnet | caused by the flow of electricity through a coiled wire |
magnetic poles | greatest magnetic force |
magnetic field | area around a magnet where magnetic forces act |
Created by:
KRago
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