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Chemical / Physical change
Properties of Matter
Elements & Compounds
Chemical Reactions
Vocabulary
100
Cutting your hair (chemical or physical)
What is physical change?
100
A property that depends on the type of matter for example, melting point, density or boiling point for example.
What is an intensive property?
100
The simplest form of matter that has a unique set of properties.
What is an element?
100
When one substance or more than one substance changes into one or more new substances, this process is called.
What is a chemical reaction?
100
The study of the composition of matter and the changes that matter undergoes.
What is chemistry?
200
Melting of ice.
What is a physical change?
200
The three states of matter.
What are solid, liquid or gas?
200
A substance that contains two or more elements chemically combined in a fixed proportion.
What is a compound?
200
The substance present at the start of a chemical reaction.
What is a reactant?
200
A logical, systematic approach to the solution of a scientific problem.
What is the Scientific Method?
300
Rusting of a car.
What is a chemical change?
300
A property that depends on the amount of matter in a sample for instance mass or volume.
What is an extensive property?
300
Can be broken down into simpler substances by chemical means.
What is a compound?
300
A substance produced by a chemical reaction.
What is a product?
300
A well tested explanation for a broad set of observations.
What is a theory?
400
How physical changes can be classified. (Page 78)
What is reversible or irreversible?
400
Anything that has mass and takes up space.
What is matter?
400
There are 4 possible clues that a chemical reaction has occurred. Name 2 of the 4.
What is ... and ...?
400
A proposed explanation for an observation.
What is a hypothesis?
500
Slicing a loaf of bread.
What is a physical change?
500
A quality of a substance that can be observed or measured without changing the substance's composition for example color>
What is a physical property?
500
A uniform mixture for example stainless steel.
What is a homogeneous mixture?
500
Name two clues that a chemical reaction has occurred.
What is ... and ...?
500
The name of the person who transformed chemistry into a science of measurement. (HINT: he was beheaded in the French Revolution)
What is Antoine Lavoisier?