Matter
Anything that has mass and takes up space
Matter
This state of matter has a definite shape and define volume.
SOLID
Collisions of gas particles cause what?
Pressure
H2O has how many total atoms?
3
Warmer temperatures make molecules move _______________
faster
Give an example of matter
Any solid, liquid, or gas
This state of matter has no definite shape, but does have a definite volume
LIQUID
Increased temperature causes the volume of a gas to what?
Increase
Made up of all the same atoms; H, Pb, Ti are examples of this.
What is an element?
The process where heat is removed from a liquid and it becomes a solid
Freezing
This type of matter can be separated easily and is not chemically bonded.
Mixture
What is the particle motion in all 3 states of matter?
Solid - vibrate
Liquid - move around casually
Gas - fast
More pressure in particles causes the volume to what?
decrease
H20 (water) and CO2 (carbon dioxide) are examples of this as they are made up of different elements bonded together.
Compounds
What 2 things happen to the particles when a substance evaporates?
Spread out and get faster
All matter is made of
Atoms
Particles in this state of matter are loosely packed and slide past each other
liquid
What will happen to the particle spacing and the speed if you add thermal energy?
Further apart & move faster
A substance containing 2 or more of the same atoms, bonded together is called this.
Molecules
When a liquid changes to a gas, what happens to the pressure and volume of the particles?
decreases pressure, increases volume
Element, Compound, Molecule
List the states of matter in order of least attraction of particles to most attraction.
gas, liquid, solid
What will happen to temperature and pressure if you decrease a gas's volume?
temperature decreases, pressure increases
If diamond and graphite are both made of the element carbon, how can they be different substances? (*hint think about atoms)
Atoms are hooked or arranged differently
Which 3 phase changes remove thermal energy?
freezing, condensation, deposition