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6th Grade Review
Term | Definition |
---|---|
energy | the ability to do work |
kinetic energy | the energy an object has due to its motion |
stored energy | |
gravitational potential energy | potential energy that depends on the height of an object |
chemical potential energys | potential energy stored in chemical bonds |
mechanical energy | the energy associated with the motion and position of everyday objects |
electrical energy | energy of electric charges |
chemical energy | energy stored in chemical bonds |
nuclear energy | energy stored in the nucleus of an atom |
electromagnetic waves | a form of energy that travels through space as waves |
thermal energy | heat energy |
conduction | direct transfer of heat from one substance to another substance that it is touching. |
convection | transfer of thermal energy by the circulation or movement of a liquid or gas |
radiation | transfer of energy by electromagnetic waves |
law of conservation of energy | energy cannot be created or destroyed |
temperature | measure of how hot or cold something is |
evaporation | liquid to gas |
transpiration | loss of water from a plant through its leaves |
condensation | gas to liquid |
precipitation | rain, snow, sleet, or hail that falls to the groun |
surface runoff | water that flows over land until it reaches lakes, rivers, or other areas |
groundwater | water held underground in the soil or in pores and crevices in rock |
salinity | the amount of salt in water |
cirrus | wispy, feathery clouds |
cumulus | clouds that look like fluffy, rounded piles of cotton |
stratus | clouds that form in flat layers |
rain gauge | measures the amount of rain fall |
thermometer | measures temperature |
local winds | winds that blow over short distances |
global winds | winds that blow over long distances |
sea breeze | movement of air from sea to land during the day |
land breeze | movement of air from land to sea at night |
Coriolis effect | the effect of Earth's rotation on the direction of winds and currents. |
latitude | distance north or south of the equator |
longitude | distance east or west of the prime meridian |
warm front | the front of an advancing mass of warmer air |
cold front | a front where cold air moves in under a warm air mass |
Erosion | The process by which wind, water, ice, or gravity transports soil and sediment from one location to another |
Deposition | Process in which sediment is laid down in new locations. |
Weathering | The breaking down of rocks and other materials on the Earth's surface. |
ice wedging | Process that splits rock when water seeps into cracks, then freezes and expands. |
meander | When water flows in a curvy, bendy path, like a snake |
alluvial fan | a fan-shaped mass of material deposited by a stream when the slope of the land decreases sharply |
mountai | land with steep sides that rises sharply (1,000 feet or more) from surrounding land; generally larger and more rugged than a hill |
valley | an area of low land between hills or mountains |
sea cave. | A cave near sea level in a sea cliff cut by processes of marine erosion. |
sea arch | landform that results when waves create a hole in a wave-cut cliff |
barrier island | a long ridge of sand or narrow island that lies parallel to the shore |
sand bar | long, underwater deposit of sand parallel to a shoreline |
Cells | The basic unit of structure and function in all living things |
Cell membrane | thin, flexible barrier around a cell; regulates what enters and leaves the cell |
cell wall | A rigid structure that surrounds the cell membrane and provides support to the cell; usually found in plants and fungi |
Control center of the cell | |
Powerhouse of the cell | |
Cytoplasm | A jellylike fluid inside the cell in which the organelles are suspended |
Taxonomy | The scientific study of how living things are classified |
dichotomous key | a key for the identification of organisms based on a series of choices between alternative characters |
skeletal system | Protects and supports body organs and provides a framework the muscles use to support movement. Made up of bones and joints |
Muscular System | enables movement of the body and internal organs |
digestive system | body system the breaks down food and absorbs nutrients |
Cardiorespiratory System | the system that circulates blood through the body; consists of the heart, blood vessels, and respiratory system |
reproductive system | system of organs involved in producing offspring |
nervous system | the system that includes nerve cells and fibers that transmits nerve impulses between parts of the body. |
Femur | Largest bone in body |
pelvis | hip bone |
rib cage | protects the heart and lungs |
Cranium | skull |
Humerus | upper arm bone |
Phalanges | bones of the fingers and toes |
Sternum | breastbone |
Vertebrae | backbones |
Esophagus | Tube connecting the mouth to the stomach |
Large intestine | Absorbs water and forms feces |
small intestine | The part of the digestive system in which most chemical digestion takes place. |
Rectum | the final section of the large intestine, ending at the anus. |
heart | A hollow, muscular organ that pumps blood throughout the body. |
lungs | two spongy organs, located in the thoracic cavity enclosed by the diaphragm and rib cage, responsible for respiration |
Arteries | carry blood away from the heart |
Veins | carry blood to the heart |
Aquifer | A body of rock or sediment that stores groundwater and allows the flow of groundwater. |
stalagmite | A cone-shaped calcite deposit that builds up from the floor of a cave |
Stalactite | A cone-shaped calcite deposit that hangs from the roof of a cave |
weather | The condition of Earth's atmosphere at a particular time and place. |
climate | Overall weather in an area over a long period of time |
water cycl | The continual movement of water among Earth's atmosphere, oceans, and land surface through evaporation, condensation, and precipitation |