VOCABULARY
What is the process by which a solid becomes a liquid?
Melting?
States o Matter
SOLID
Atoms are in _____ position.
It has _____ shape and volume.
fixed
Definite
All matter are made up of particles that are in constant _____.
Motion
What is the temperature at which a substance changes state from a liquid to a solid?
Freezing Point
States of Matter
LIQUID
particles are not in a ............
Fixed arrangement
Adding or removing _______ energy causes changing in state of matter.
Thermal
In general, the state of matter with the least energy is _______________.
Solid
States of Matter
GAS
Atoms are _____ to move.
They _____ shape and volume.
free
don't have fixed
Which of the following is not an example of a physical change?
A. chopping an onion B. frying an egg
C. melting snow D. boiling water
Frying An Egg
The motion of particles results in _____ energy.
If energy is added, the particles move _____.
If energy is removed, the particles move _____.
kinetic
faster
slower
State of Matter
LIQUID
It _____ shape but has a _____ volume.
changes
definite
As temperature increases, the particles in a substance move faster and have greater _____ and _____ energy.
kinetic
thermal
Solid to Liquid
As the temperature increases, the atoms
_____ energy and will vibrate _____.
gain
faster
DOUBLE POINTS
How does matter change from one state to another? What is Thermal Contraction?
WORTH 1000 POINTS
All matter is made up of particles that are in constant motion. This results in kinetic energy. The part of total internal energy that can be transfered is called thermal energy. Changes in energy can result in changes of state, including sublimation, condensation, freezing, and melting. Thermal contraction is the contraction of matter caused by a change in heat
Solid to Liquid
_____ is the process by which a solid becomes a liquid.
Different substances have different _____ points.
Ice is _____degrees C
Melting
melting
0 degrees C