Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
31 Cards in this Set
- Front
- Back
|
solid
|
a state of matter that has a definite volume and shape, the particles vibrate back and forth and stay in one fixed position
|
|
|
crystalline solid
|
a substance that is made up of crystals in which the particles are arranged in a regular repeating pattern.
|
|
|
melting point
|
the temperature at which a substance changes from a solid to a liquid
|
|
|
amorphous solids
|
a solid made up of particles that are not arranged in a regular pattern.
|
|
|
liquids
|
a state of matter that has a definite volume and shape.
|
|
|
viscosity
|
the resistance of a liquid to flowing
|
|
|
gas
|
a state of matter with no definite shape or volume
|
|
|
volume
|
the amount of space that matter occupies.
|
|
|
temperature
|
the measure of the average kinetic engergy (energy of motion) of the particles in a substance.
|
|
|
pressure
|
the force of a gases outward push divided by the area of a walls container
|
|
|
Boyle's Law
|
the relationship between the pressure and volume of a gas at a constant temperature, when volume increases temperature decreases
|
|
|
Charle's Law
|
the relationship between the temperature and volume of a gas at a constant pressure, when temperature increases at a constant pressure so does the volume
|
|
|
matter
|
anything that occupies space and has mass
|
|
|
properties of matter
|
the variety of characteristic that can be used to identify any substance
|
|
|
chemistry
|
the study of the properties of matter and how matter changes
|
|
|
element
|
a substance that can't be broken down into other substances by chemical or physical means.
|
|
|
atoms
|
the smallest particle of an element.
|
|
|
symbol
|
usually one-to-two letter set of characters that is used to identify an element
|
|
|
compound
|
a substance made of two or more elements chemically combined
|
|
|
formula
|
a combination of symbols that shows the ratio of elements in a compound
|
|
|
physical change
|
a change that alters the form or appearance of a substance but doesn't make it into a new substance
|
|
|
chemical change
|
a change in matter that produces new substances
|
|
|
weight
|
the measure of the force of gravity on an object
|
|
|
mass
|
a measure of how much matter is in an object
|
|
|
volume
|
the amount of space that matter occupies
|
|
|
density
|
the measurment of how much mass of a substance is contained in a given volume
|
|
|
Democritis
|
lived around 440 b.c. and was one of the first people to have thought that matter was formed of smaller pieces
|
|
|
John Dalton
|
in 1802 he propesed an atomic theory. He was a teacher.
|
|
|
How small is an atom?
|
atoms are so small that for a long time no one thought they would see them. there are more atoms in one grain of sand then there are grains of sand on the whole beach
|
|
|
chemical bond
|
the force that holds two atoms together
|
|
|
molecule
|
a combination of two or more atoms that are bonded together.
|
