Shared Flashcard Set

Details

Chapter 2 Vocabulary
Introduction to Matter
31
Science
8th Grade
09/29/2011

Additional Science Flashcards

 


 

Cards

Term
matter
Definition
anything that has mass and takes up space
Term
chemistry
Definition
study of properties and how matter changes
Term
substance
Definition
single kind of matter that is pure, meaning it always has a specific makeup
Term
physical property
Definition
characteristic of a pure substance that can be observed without changing it into another substance
Term
chemical property
Definition
characteristic of a pure substance that describes its ability to change into different substances
Term
element
Definition
pure substance that cannot be broken down into any other substances by chemical or physical means
Term
atom
Definition
basic particle from which all elements are made
Term
chemical bond
Definition
a force of attraction between two atoms
Term
molecules
Definition
groups of two or more atoms held together by chemical bonds
Term
compound
Definition
pure substance made of two or more elements chemically combined in a set ratio
Term
chemical formula
Definition
shows the elements in the compound and ratio of atoms
Term
mixture
Definition
made of two or more substances-elements, compuonds, or both-that are together in the same place but aren't chemically combined
Term
heterogeneous mixture
Definition
you can see the different parts
Term
homogeneous mixtures
Definition
mixed so finely that you can't see the different parts
Term
solution
Definition
example of a homogeneous mixture
Term
weight
Definition
measure of the force of gravity on you
Term
mass
Definition
measurement of the amount of matter in the object
Term
International System of Units
Definition
system of units used to measure the properties of matter
Term
volume
Definition
amount of space that matter occupies
Term
density
Definition
relates to the mass of a material in a give volume
Term
physical change
Definition
any change that alters the form or appearance of matter but does not make the substance in the matter into the different substance
Term
chemical change
Definition
a change in matter that produces one or more new substances
Term
energy
Definition
ability to do work or cause change
Term
temperature
Definition
measure of the average energy of random motion of particles of matter
Term
thermal energy
Definition
total energy of all of the particles in an object
Term
kinetic energy
Definition
energy of matter in motion
Term
kinetic energy
Definition
energy of matter in motion
Term
potential energy
Definition
energy of an object because of its position
Term
chemical energy
Definition
internal energy stored in the chemical bonds between atoms is a form of potential energy
Term
electromagnetic energy
Definition
form of energy that travels through space as waves
Term
electrical energy
Definition
energy of electrically charged particles moving from one place to another
Supporting users have an ad free experience!