Measuring Matter
Anything that has mass and volume.
What is matter?
A property that can be observed without changing the identity of the substance.
What is a physical property?
The ability of a solvent to dissolve a certain amount of solute.
What is solubility?
solid, liquid, gas
How is weight different from mass?
Mass measures the amount of matter, but weight measures the amount of force gravity exerts on the matter.
The amount of space a substance takes up.
What is volume?
When does evaporation happen?
When a substance changes from a liquid to a gas BELOW the boiling point.
A substance that is dissolved
what is a solute?
Small particles that make up all matter.
What are atoms?
What tool do we use to measure the volume of a liquid?
a graduated cylinder
To measure the volume of irregularly shaped objects, we use a method called ________________ ___________________.
Water displacement
A liquid changing to a gas.
What is vaporization?
A substance that dissolves another substance.
What is a solvent?
Two or more substances that are physically combined.
What is a mixture?
Is heating up a marshmallow a physical or chemical change?
A gas changing to a liquid.
What is condensation?
The amount of solute that is dissolved in the solvent.
What is concentration?
When atoms of different elements combine to form multiple molecules.
What is a compound?
The box with the cotton candy would be lighter and easier to carry. Cotton candy is less dense than licorice is.
What is density?
The amount of matter in a certain volume.
Explain the volume & shape of each state of matter.
Solid : definite volume, definite shape
Liquid : definite volume, no definite shape
Gas : no definite volume, no definite shape
A mixture in which all the substances are spread evenly throughout.
A solution
+100 points for homogenous mixture
Matter that is made up of only one kind of atom.
What is an element?
How is a physical change different form a chemical change?
A physical change does not form a new substance, but a chemical change does.