Matter all around us Flashcards
what is matter?
anything that has mass and volume
what is all matter made up of?
very small particles that are constantly moving
what is mass?
the amount of matter in an object
what is volume?
the amount of space an object occupies
what is density?
the ratio of a material’s mass to its volume
how many states of matter are there?
three
what are the states of matter?
solid, liquid, and gas
how do states of matter change?
by adding or removing heat
what is melting point?
the temperature at which a solid changes to a liquid
what is boiling point?
the temperature at which a liquid changes to a gas
what is the melting point for water?
0°C
what is the boiling point for water?
100°C
what is conductivity?
describes how easily electricity or heat can move through a material
what is kinetic energy?
the energy of movement
describe the particles of a solid
particles in a solid are packed so tightly that they can only vibrate
describe the particles of a liquid
particles of a liquid are farther apart and can slip and slide past each other
describe the particles of a gas
particles of a gas are very far apart and move around freely and quickly
what are the main points of the kinetic molecular theory?
- all matter is made up of very small particles
- there is empty space between particles
- particles are constantly moving. In liquids and gases, the particles are colliding with each other
- energy makes particles move
oxygen and gold are examples of ______.
elements
what are the 6 changes of state?
melting, evaporation, deposition, solidification, sublimation, condensation
what is removed from gaseous gold to cause it to change to a liquid?
Heat
What changes of state occurs when you turn a gas into a liquid?
Condensation
What changes of state occurs when liquid turns into solid?
Solidification
What is added to a solid gold to change it to a liquid?
Heat
