Matter & Atmosphere Basic - Chapter 11

physical properties

Properties that can be observed or measured without changing an object, or any part of the materials it is made of, into something else.

mass

A measure of the amount of matter in an object

weight

A measure of the force of gravity on an object

volume

Amount of space occupied by an object

liquid

A state of matter that has no definite shape but has a definite volume.

solid

A form of matter that has a definite shape and volume

A state of matter that has a definite shape and a definite volume

gas

A state of matter with no definite shape or volume

temperature

A measure of how hot (or cold) something is; specifically, a measure of the average kinetic energy of the particles in an object.

Celsius

Metric unit for measuring temperature; On this scale water freezes at zero and boils at 100.

physical change

A change in a substance that does not involve a change in the identity of the substance

chemical change

A change that occurs when one or more substances change into entirely new substances with different properties.

evaporation

The change of a substance from a liquid to a gas

condensation

The change of state from a gas to a liquid

mixtures

a physical combination of substances that can still be separated

solution

A homogeneous mixture of two or more substances in a single phase

A mixture in which one or more substances are evenly distributed in another substance.

matter

Anything that has mass and takes up space

atomic theory

a theory that states that all matter is composed of tiny particles called atoms.

Radiation

Energy that is radiated or transmitted in the form of rays or waves or particles.

Conduction

The direct transfer of heat from one substance to another substance that it is touching.

Convection

Process by which, in a fluid being heated, the warmer part of the mass will rise and the cooler portions will sink.