Unit 1b Test Review

Front

What is the process of melting?

Back

The process of melting is the change in state from a solid to a liquid.

Front

What characterizes the state of matter known as gas?

Back

In the gas state, particles can move freely throughout the container.

Front

What type of mixture is freshly brewed black coffee?

Back

Freshly brewed black coffee is a homogeneous mixture.

Front

What type of mixture is chicken noodle soup?

Back

Chicken noodle soup is a heterogeneous mixture.

Front

Describe the properties of gas in terms of shape and volume.

Back

Gases have no definite shape or volume; they take the shape and volume of their containers.

Front

What happens to the particles in a gas when it is heated?

Back

When a gas is heated, its particles move faster and spread further apart.

Front

What is the difference between homogeneous and heterogeneous mixtures?

Back

Homogeneous mixtures have a uniform composition throughout, while heterogeneous mixtures have distinct, separate components.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

What is the definition of a solid?

Back

A solid has a definite shape and volume, with particles that are closely packed together.

Front

How do the particles in a liquid behave?

Back

In a liquid, particles are close together but can move past one another, allowing liquids to flow.