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6Science Vocabulary

Tennessee Essential 6th Grade Science Vocabulary 2016-2017

TermDefinition
convection the transfer of thermal energy by the circulation or movement of a liquid or gas
design constraint something that limits an engineer during the engineering design process
prototype test model of a product
potential type of energy that an object has because of the position, shape, or condition of the object
kinetic type of energy of an object that is due to the object’s motion
gravitational type of potential energy that is based on the distance above the earth
elastic type of potential energy that is based on stretching an object out of shape
chemical type of potential energy stored in food or fuels
conductor a substance that easily transfers energy
insulator a substance that reduces the transfer of energy
meteorological data temperature, wind speed, wind direction, air pressure, and relative humidity
air currents large-scale movements of air caused by a flow from high to low pressure
water currents large-scale water movements caused by wind, density differences, and temperature differences
coriolis effect the apparent curving of the path of a moving object from an otherwise straight path due to Earth’s rotation
density mass per unit of volume of a material
high pressure the atmospheric pressure is greater than that of the surrounding area
low pressure the atmospheric pressure is less than that of the surrounding area
sea breeze the wind blows from the sea toward the land
land breeze the wind blows from the land toward the sea
front the boundry between air masses of different densities and usually different temperatures
humidity the amount of water vapor in the air
hygrometer a device for measuring the relative humidity of the air
psychrometer a device for measuring the relative humidity of air that is spun around before it is read
revolution following an orbital path around the sun or a planet
rotation spinning on an axis
comet a small body of ice, rock, and cosmic dust that follows an elliptical orbit around the sun and that gives off gas and dust in the form of a tail as it passes close to the sun
galaxies collections of stars, dust, and gas bound together by gravity
asteroid a small, rocky object that orbits the sun, usually in a band between Mars and Jupiter
equinox the two times each year when both hemispheres receive the same amount of energy from the sun
astronomical unit the average distance between the Earth and the sun; about 150 million kilometers
solstice the two times each year when the sun is as far north or as far south of the equator as possible
neap tide a tide of minimum range that occurs two times per month, at the first and third quarter moons
spring tide a tide of increased range that occurs two times per month, at the new and full moons
predation a way of life in which food is obtained mostly by killing and eating animals
competition the active seeking after and use of an environmental resource (as food) in limited supply by two or more plants or animals or kinds of plants and animals
adaptation adjustment to environmental conditions
biodiversity the variety of plants and animals in an environment as indicated by numbers of different species
phytoplankton the mass of mostly microscopic producers that float or drift freely in freshwater and marine environments
zooplankton the mass of mostly microscopic consumers that float or drift freely in freshwater and marine water environments
biome a large region characterized by a specific type of climate and certain biotic elements
lunar eclipse an event in which the shadow of the Earth falls on the Moon
solar eclipse an event in which the shadow of the Moon falls on part of the Earth
control everything you want to remain unchanged in an experiment
independent variable something changed on purpose in an experiment
dependent variable the result that is measureable or observed in an experiment
coniferous a tree that has needles and mainly stays green year round
deciduous a tree that sheds its leaves at the end of the growing season
primary consumer an organism that feeds on producers
secondary consumer an organism that mainly feeds on primary consumers
tertiary consumer an organism that mainly feeds on secondary consumers
anemometer a device for measuring wind speed
barometer a device for measuring air pressure
meteor a bright streak of light in Earth's atmosphere
meteorite a meteoroid that reaches Earth's surface
meteoroid a very small rocky object that travels through space
biotic describes the living parts of the environment
abiotic describes the non-living parts of the environment
producer an organism that uses sunlight to make food
energy pyramid a triangular diagram that shows an ecosystem's loss of energy, which results as energy passes through a food chain
Created by: mark.campbell