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Science EOG

science

QuestionAnswer
cell the smallest part of a living thing that can carry out all the processes of life
multicellular an organism made up of more than one cell
unicellular an organism made up of only one cell
skeletal system body system that gives your body structure, protects major organs, and assists with movement
nervous system body system that controls all the other systems in the body includes: brain, nerves, and spinal cord
muscular system body system that works with your skeletal system to allow your body to move
digestive system body system that breaks down food so it can be used by the body includes esophagus, stomach, small intestine and large intestine
respiratory system body system that takes in oxygen from the air and releases carbon dioxide includes: trachea and lungs
circulatory system body system that transports oxygen, food, and waste throughout the body includes: heart, blood vessels, and blood
decomposer a living thing that gets energy by breaking down wastes and dead plants and animals
food chain a model that shows the path of energy as it flows from one living thing to the next
herbivore a consumer that eats only plants
food web a model that shows how several food chains connect together
carnivore a consumer that eats only animals
omnivore a consumer that eats both plants and animals
abiotic factors the nonliving factors in an ecosystem
biotic factors the living factors in an ecosystem
grassland an ecosystem that has fertile soil covered with tall grasses
terrestrial ecosystem a land-based ecosystem
estuary a body of water in which fresh water from a river meets and mixes with salt water from the ocean
aquatic ecosystem a water-based ecosystem
salt marsh a flat area of land where salt water overflows
producer a living thing that makes its own food
consumer a living thing that gets energy by eating other living things
force a push or a pull
speed a measure of how far an object moves in a certain amount of time
distance-time graph a line graph that shows an objects motion
friction a force that acts between surfaces that touch each other; tends to slow an object's motion
gravity a force that pulls objects towards each other
physical change a change in which no new material forms
chemical change a change in which one or more new types of matter form
thermal energy the energy of moving particles that make up all matter - heat
convection the transfer of thermal energy by the movement of liquids or gases
insulator a material that heat does NOT pass through easily
conductor a material through which heat can move easily
conduction the transfer of thermal energy between things that are touching
radiation the transfer of energy by electromagnetic waves
rain gauge a tool used to measure the amount of precipitation that falls
wind vane a tool that shows wind direction - where the wind is coming from
thermometer a tool used to measure temperature
anemometer a tool used to measure wind speed
barometer a tool used to measure air pressure
air pressure the weight of the atmosphere pressing at a certain place
stratus clouds low, sheetlike gray clouds
air mass a large body of air with the same temperature and humidity throughout
cumulus clouds puffy clouds that are flat on the bottom - signal fair weather
front a place where two different air masses meet
cirrus clouds wispy clouds that are made of ice crystals - signals a change in weather is coming
cold front cold air mass bumps against a warm air mass - causes strong storms and cooler temperatures
cumulonimbus clouds puffy, layering clouds that are flat on the bottom and dark - bring rain, thunder, and lightning
warm front warm air mass meets a colder air mass and slowly rises over it - brings rain and warmer temperatures
stationary front forms when two air masses meet and stop moving - brings clouds and precipitation
transpiration the process by which plants release water vapor into the air from their leaves
condensation the change from a gas to a liquid
precipitation water that falls from the atmosphere as rain, snow, sleet, or hail
evaporation the change from a liquid to a gas
jet stream an air current in the upper atmosphere that flows from west to east
gulf stream a warm ocean current in the Atlantic ocean
el nino an unusual warming of the surface water in the eastern Pacific ocean near the equator
la nina an usual cooling of the surface water in the eastern Pacific ocean near the equator
Created by: beroth