8th grade science vocabulary
Terms
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- Demonstrate
- To explain or describe how something works or how to do something.
- Light
- Electromagnetic radiation in the range visible to the human eye
- Spectrum
- A continuous distribution of colored light produced when a beam of white light is dispersed into its components, for example, by a prism. Used as a means of analyzing properties.
- Hypothesis
- An answer to a problem that you think might be correct. Some say it is an educated guess.
- Characteristic
- A feature or quality that make somebody or something recognizable
- Limitation
- An imposed restriction that cannot be exceeded or sidestepped
- Light-year
- A unit of distance equal to the distance that light travels in a vacuum in one mean solar year, approximately 9.46 trillion km or 5.88 trillion miles
- Gravity
- The attraction due to the force that the Earth or another celestial body exerts on an object on or near its surface
- dependent
- The responding variable that changes its value according to the value of other elements present
- Milky Way
- The spiral galaxy to which Earth and its solar system belong, some of which appears as a faint band of light in the night sky. Also called Galaxy
- Kinetic Energy
- The energy that a body or system has because of its motion
- Graph
- A diagram representing a system of connection or interrelations among two or more things by a number of distinctive dots, line, bars, etc.
- Refraction
- The change in direction that occurs when a wave of energy such as light passes from one medium to another of a different density, for example, from air to water.
- Reflection
- The process or act of reflecting something, especially light, sound, or heat
- Conduct
- to transmit energy, for example, heat, light, sound, or electricity
- Gravity
- the attraction due to gravitation that the Earth or another celestial body exerts on an object on or near its surface
- Transverse
- Lying or extending across or in a cross direction
- Data
- Individual facts, statistics, or items of information
- Reflection
- the process or act of something, especially light, sound, or heat is reversed along an axis so that the new figure produced is a mirror image of the original one
- Newton
- An SI unit of force equivalent to the force that produces an acceleration of one mete per second on a mass of one kilogram. Symbol N
- Refraction
- the change in direction that occurs when a wave of energy such as light passes from one medium to another of a different density, for example, from air to water
- Apparent
- Appearing to show particular qualities or attributes that may not be genuine, directly observed or measured but not taking into account factors or effects that should be allowed for.
- Experiment
- A test, especially a scientific one, carried out in order to discover whether a theory is correct or what the results of a particular course of action would be.
- Analyze
- To look at and examine something closely
- Science
- the study of the physical world and its manifestations, especially by using systematic observation and experiment (often used before a noun)
- Constant
- remaining the same and not varying with change in other things
- Concave
- Curved inward like the innner surface of a bowl or sphere, used to describe a polygon with an interior angle greater than 180 degrees
- Atomosphere
- The blanket of gases which surround the Earth.
- Light
- A sensation of brightness that makes seeing possible. Electromagnetic radiation in the range visible to the human eye.
- Represent
- Symbolize or stand for something, to go or be present somewhere on behalf of something, to portray or present an image of something as being something in particular
- Media
- A substance which must be present for a wave to travel through, sound waves require media to move
- Inquiry
- A seeking or request for truth, information, or knowledge
- Convex
- With a surface that curves outward rather than inward, shaped like the exterior of a sphere, paraboloid, ellipsoid, or any other outwardly curved surface, used to describe a polygon with no interior angle greater than 180 degrees
- Energy
- The capacity to do work; the property of a system that diminishes when the system does not work on any other system, by an amount equal to the work so done.
- Matter
- Anything that has mass and volume. It is what the entire universe is made of.
- Control
- To limit or restrict the occurrence or expression of something.
- Universe
- The totality of all matter and energy that exists in the vastness of space, whether known to human beings or not.
- Independent
- The variable that is manipulated in an experiment in order to observe the effect on another variable
- Theory
- The body of rules, ideas, principles, and techniques that applies to a particular subject, especially when seen as distinct from actual practice
- Interaction
- The combined or reciprocal action of 2 or more things that have an effect on each other and work together
- Model
- A copy of an object, something that is copied or used as the basis for a related idea, process or system.
- Potential Energy
- The energy that a body or system has stored because of its position in an electric, magnetic, or gravitational field, because of its configuration