Science Review

Front

Cracking an egg is a ________________ change.

Back

Physical Change

Front

What type of change occurs when a bicycle rusts?

Back

Chemical Change

Front

The center of an atom is called the _________.

Back

nucleus

Front

The area outside of the nucleus is called the __________________ and it has a _____________ charge.

Back

electron cloud, negative charge

Front

If you dissolve salt into water, which one is the SOLVENT?

Back

water

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

What are the three main parts of an atom?

Back

Protons, Neutrons, Electrons.

Front

What charge do protons have?

Back

Positive charge.

Front

What charge do electrons have?

Back

Negative charge.