Physical Science Chapter 2 Flashcards
(27 cards)
What is matter
Anything that takes up space
What does atoma mean
individual
What is the Particle Theory of matter
There are different kinds of particles in matter
What is the Particle Model
The properties of matter that we can see or measure
What is Brownian motion
The movement of bits and matter in liquids and gases
What is kinetic molecular theory
Tiny particles in random, constant motion that makes up matter
What is a physical property
Anything about an object that we can observe without it changing
What is a physical change
It cant change substance appearance
What is a chemical change
Changes the identity of a substance
What is a chemical property
Something that can change from one kind of chemical into another
Matter/Energy can not be created or destroyed
T/F
True
What is a nuclear change
It changes the number of protons and neutrons
What is phases change
When matter changes from one state to another
What is melting
when something turns from a solid to a liquid
what is freezing
when something turns from a liquid to a solid
Whats vaporization
when liquid water changes to a gas
Name 2 kinds of vaporization
boiling and evaporation
What is condensation
When vapor cools and changes from a gas to a liquid
What is deposition
when a gas becomes a solid
What are pure substances
Materials made up of only one kind of substance
What is a homogeneous mixture
U cant see the difference
What is heterogeneous
U can see layer/mixtures
What are the 3 states of matter
Solid,Liquid,gas
Solids dont easily change shape and do not flow
T/F
True
