Physical Properties
What is an example of a hard and soft material?
Diamond and Chalk.
What is the amount of space an object occupies?
Volume
Can physical changes in matter be reversed?
Yes.
What is a mixture?
When two substances are combined or mixed together.
What kind of material goes back to its original shape after bending?
Elastic
What unit do we use to measure mass?
Gram and kilograms.
True or False: When you heat an object you make more matter resulting in a change.
False.
When you can see the two different substances in a mixture is it homogeneous or heterogeneous?
Heterogeneous.
A material that does not dissolve in water is called what?
insoluble
What is density?
The amount of mass that there is in the volume of an object.
A change in matter that makes new matter is called a what?
Chemical change
What is a homogeneous mixture?
When one substance dissolves into another and you can’t see it.
Metal gets hot. This means it is a what?
Thermal Conductor.
What do we use to find the mass of an object?
Scale.
Name two examples of chemical changes.
Rot
Melt
Burn
Ferment
The substance that is dissolved is called the what?
Solute
Give two examples of thermal insulators.
Wood and plastic.
If a jug has 500 ml of water in it and you had a stone which makes the measure on the jug go up to 650 ml, what is the volume of the stone?
150 ml
What is the difference in a physical change and a chemical change?
In a physical change, the composition of the matter doesn’t change but it does in a chemical change.
Evaporation is used to separate what kind of substance from what kind of mixture?
A soluble solid from a homogeneous mixture.