States of Matter
Name the three states of matter
Solid, Liquid, Gas
Particles are closely packed together and vibrate
Solid
Anything that has a mass and takes up space
matter
What do we call a phase change from a solid to a liquid
melting
What do we call a phase change from a gas to a liquid
Condensation
Has a definite shape and a definite volume
Solid
Particles are tightly packed but far enough apart to slide over one another
Liquid
the amount of matter in an object
mass
What do we call a phase change from a liquid to a solid
Freezing
If we add thermal energy to the container, the gas inside the bag will _________________
expand
Has no definite shape but does have definite volume
Liquid
Particles are very far apart and move freely except when they collide with each other.
Gas
An increase in the volume of a substance while its mass remains the same
expansion
What do we call a phase change from a liquid to a gas
evaporation
Sugar particles will ________________ in hot water than in cold water.
more quickly
No definite shape and no definite volume
Gas
the states of matter from slowest to fastest particle speed
solid, liquid, gas
A decrease in the volume of a substance while its mass remains the same
Contraction
When removing thermal energy, the particles move ______________ and become ________________________.
slower; closer together
When gases are heated, they ______and________
expand and rise
Another name for the states of matter
phases of matter
the states of matter from weakest to strongest intermolecular forces.
gas, liquid, solid
Very small unit that makes up matter
particle
When adding thermal energy, particles move ______________ and become _________________________.
faster;more spread out
After heating the container, the teacher released the bag from the neck of the container. Why did the bag rise into the air and float?
The air inside the bag was less dense than the air around it.