Modeling Matter Chapter 1 Test

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What is a model in science?

Back

A model is something scientists make to answer questions about the real world.

Front

What does it mean when molecules are strongly attracted to each other?

Back

It means that the molecules hold together.

Front

What do you call a combination of water molecules and salt molecules?

Back

A mixture.

Front

What is a molecule?

Back

A molecule is a group of atoms joined together in a particular way.

Front

What is the difference between a substance and a mixture?

Back

A substance is a single kind of matter, while a mixture is a combination of two or more substances.

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What is the role of molecules in matter?

Back

Molecules make up all matter and determine its properties.

Front

What happens to molecules in a solid?

Back

In a solid, molecules are closely packed together and vibrate in place.

Front

What happens to molecules in a liquid?

Back

In a liquid, molecules are close together but can move past each other.