Science 7 Review for Finals

Front

What are elements made from?

Back

Elements are made from one type of atom.

Front

Which subatomic particle has a negative charge?

Back

Electrons have a negative charge.

Front

Is gold made up of only gold atoms?

Back

Yes, gold is only made up of gold atoms.

Front

What is a model that uses diagrams and words to explain ideas or systems?

Back

A Conceptual Model.

Front

How many types of scientific models are there?

Back

There are 3 types of scientific models.

Front

What is the charge of protons?

Back

Protons have a positive charge.

Front

What is the charge of neutrons?

Back

Neutrons have no charge (neutral).

Front

What is the smallest unit of an element?

Back

An atom is the smallest unit of an element.

Front

What is a physical model?

Back

A physical model is a tangible representation of an object or system.

Front

What is a mathematical model?

Back

A mathematical model uses mathematical language to describe a system.