Dr. Hall Vocab D4-D6
Terms
undefined, object
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- mass
- the amount of matter an object contains
- moon
- a natural satellite that revolves around a planet
- sedimentary rock
- rock formed from layers of sediment that overlay and squeeze together or are chemically combined
- weathering
- the natural processes that break down and change rock into soil, sand, and other materials
- metamorphic rock
- a type of rock that forms from existing rock because of extreme changes caused by heat, pressure, or chemical environments
- potential energy
- the energy an object has because of its position or structure
- Sun
- the closest star to Earth and the center of our solar system
- solution
- a mixture of two or more substances uniformly dispersed throughout a single phase
- topography
- the surface, shape, and composition of a land area
- physical change
- a reaction; a change in matter from one form to another, without forming new substances
- solid
- having a definite shape and a definite volume
- pollution
- any alteration of the natural environment producing a condition harmful to living organisms; may occur naturally or as a result of human activities
- planet
- a large body in space that orbits a star and does not produce light of its own
- organ
- a structure containing different tissues that are organized to carry out a specific function of the body
- nonrenewable source
- a resource that can only be replenished over millions of years
- moon phase
- a phrase that indicates the fraction of the Moon's disc that is illuminated
- matter
- a solid, liquid, or gas that possesses inertia and is capable of occupying space
- protist
- unicellular organisms belonging to the kingdom Protista
- water cycle
- the path water takes as it is being cycled through the environment
- predator
- an organism that preys on and consumes animals
- scientific method
- a plan of inquiry that uses science process skills as tools to gather, organize, analyze, and communicate information
- volcano
- a vent or fissure in Earth's surface through which magma and its associated materials are expelled
- wheel and axle
- a type of simple machine; a circular frame or disk revolving around a central axis
- resource
- any material that can be used to satisfy a need
- renewable resource
- a resource that is replaced or restored, as it is used, by natural processes in a reasonable amount of time
- light
- electromagnetic radiation that lies within the visible range
- magnetic
- having the property of attracting iron and certain other materials by virtue of a surrounding field of force
- refraction
- a change in the direction of a wave that occurs as it passes from one medium to another of different density
- organism
- any living plant, animal, or fungus that maintains various vital processes necessary for life
- mixture
- the product of a thorough blending of two or more substances, not chemically combined
- solar system
- a star and all the planets and other bodies that orbit it
- star
- a large, gaseous, self-luminous body held together by gravity and powered by thermonuclear reactions
- microscopic
- relating to an object too small to be visible without the use of a microscope
- tissue
- similar cells acting to perform a specific function
- lever
- a type of simple machine; consists of a rigid bar that pivots about a fulcrum, used to transmit and enhance power or motion
- prey
- an organism caught or hunted for food by another organism
- producer
- an organism that makes its own food from the environment
- population
- a group of organisms of the same species living in a specific geographical area
- reflection
- the bouncing off or turning back of light, sound, or heat from a surface
- life cycle
- the entire sequence of events in an organisms growth and development
- system
- a set of objects, organisms, or different parts acting to form a whole
- pulley
- a type of simple machine; a circular lever, usually a wheel with a groove where a rope can be placed and used to change the direction of a force
- liquid
- one of the fundamental states of matter with a definite volume but no definite shape
- volume
- a measure of the amount of space an object takes up
- photosynthesis
- a chemical process by which plants trap light energy to convert carbon dioxide and water into carbohydrates
- universe
- a total sum of all matter and energy that exists