______________ are the building blocks of all matter.
What are atoms
100
_______________ is a characteristic that can be observed or measured without changing the identify of the substance.
What is a physical property.
100
Grinding, cutting, melting and boiling
What are examples of physical change.
100
__________________ are used to describe a substance.
What are physical properties.
100
What are the three MOST COMMON states of matter?
What solid, liquid, gas
(plasma is a 4th state--similar to a gas)
200
_______________ orbit around the nucleus of an atom.
What are electrons
200
Solid state: ___________ volume and __________ shape
What is Fixed, definite
200
solid, liquid, gas and plasma.
What are states of matter.
200
TRUE OR FALSE
A change in state does not turn the substance into a different compound.
What is TRUE
200
Gas particles move ________________.
What is rapidly/ fast
300
_______________ are particles with no charge.
What are neutrons
300
_____________A change in a substance that does not involve a change in the identity of the substance
What is Physical Change
300
liquid state: ______ volume, ___________ shape and takes the ____________ of its container.
What is Definite, indefinite, shape
300
_____________is the ratio of the mass of a substance to the volume of the substance
What is Density
300
TRUE OR FALSE
A change in state changes the distances and interaction between the particles
What is TRUE
400
_______________are negatively charged particles
What are electrons
400
___________ is a physical state of matter in which atoms lose most of their electrons (the negatively charged particles that move about the atomic nucleus.) It is a kind of gas- like state.
What is PLasma
400
In a ____________ particles that move very rapidly and are at a great distance from one another. At these great distances the attractive forces between gas particles have a lesser effect.
What is in a GAS.
400
Melting: _______ to liquid
Boiling: liquid to _________
freezing : ________ to _________
What is
Melting: solid to liquid
Boiling: liquid to gas
freezing : liquid to solid
500
_______________ and ____________ make up the nucleus of an atom.
What are protons and neutrons
500
The particles in a_________ move more rapidly than those in a solid. This causes them to overcome the strong attractive forces between them and flow.
What is Liquid
500
In a _________________ the particles are held close together by the strong attractive forces between them and only vibrate about fixed points.
What is a solid.
500
gas state: ___________ volume, _________shape. Expands to fill any size container and takes the _________ of the container
What is indefinite volume, Indefinite shape.
Takes the SHAPE of the container.
500
What is a physical change?
What is A change in a substance that does not involve a change in the identity of the substance