Quarter 1 Physical Science (Honors)

Front

What is a hypothesis?

Back

A statement that can be tested through experimentation.

Front

What is the purpose of safety goggles in a laboratory?

Back

To protect the eyes from chemical splashes and debris.

Front

What is a chemical property?

Back

A characteristic that describes how a substance interacts with other substances.

Front

How do you calculate the number of neutrons in an atom?

Back

Subtract the atomic number from the atomic mass.

Front

What is the atomic mass of an element with an atomic number of 6 and 6 neutrons?

Back

12.

Front

What role do electrons play in an atom?

Back

Electrons have a negative charge and occupy regions around the nucleus called energy levels.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

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

Back

A physical property can be observed without changing the substance, while a chemical property describes how a substance interacts with other substances.

Front

What is the definition of an atom?

Back

The smallest unit of an element that retains the properties of that element.

Front

What is the significance of the atomic number?

Back

It represents the number of protons in the nucleus of an atom and determines the element's identity.