States of Matter
What are the three main states of matter?
What are solid, liquid, gas.
What is a physical property?
A characteristic that can be observed without changing the substance or molecules.
What is a chemical property?
A characteristic that describes a substance's ability to undergo a chemical change.
What type of change is melting?
Physical Change.
What is a mixture?
A combination of two or more substances that are not chemically bonded.
In which state of matter do particles move the least?
Solid
Name one physical property that can be measured.
Mass, volume, density, color.
Give an example of a chemical property
Wood burning.
What type of change occurs when iron rusts?
Chemical.
What is a solution?
A homogeneous mixture where one substance is dissolved in another.
What state of matter has a definite volume but no definite shape?
Liquid
Which physical property describes how much space an object takes up?
Volume.
What happens to the chemical properties of a substance when it undergoes a chemical change?
They change and a new substance is formed.
What is the term for a reversible change in matter?
Physical Change.
How can you separate sand from salt in a mixture?
By adding water to dissolve the salt and then filtering the sand.
What happens to the particles of a substance when it changes from a liquid to a gas?
They move faster and spread out.
What is the term for the mass of a substance per unit volume?
Density.
What is the process called when a substance reacts with oxygen to produce heat and light?
Combustion.
Can a chemical change be reversed? Why or why not?
no, because new substances are formed.
Tap water from your sink is an example of what type of homogeneous mixture?
Solution.
In which state of matter takes the shape of its container?
Liquid
How can you separate a mixture based on physical properties?
By filtration, evaporation, or using a magnet.
A banana that is rotting is a what type of change?
Chemical.
The process by which a liquid changes to a gas is called a what?
Evaporation.
A bowl of m&m's are an example of what?
Mixture.