7.1 Chemical Reactions and Matter

Front

What is a chemical change?

Back

A process where substances combine or break apart to form new substances with different properties.

Front

What is the best evidence for a chemical change?

Back

Fizzing and bubbling.

Front

What is flammability?

Back

A chemical property that describes how easily a substance can catch fire.

Front

What is evidence in scientific terms?

Back

Data from experiments that supports a claim.

Front

What is reasoning in scientific arguments?

Back

The explanation that connects evidence to a claim.

Front

How can particles of a new substance be formed?

Back

Particles may break apart and rejoin in different ways, forming a substance with a new identity.

Front

What is a chemical property?

Back

A characteristic of a substance that can only be observed during a chemical reaction.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is the difference between a chemical change and a physical change?

Back

A chemical change results in new substances, while a physical change does not.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, matter is neither created nor destroyed.