DLA Review #1

Front

What kind of change is cutting paper?

Back

Cutting paper is a physical change because it alters the shape and size of the paper without changing its chemical composition.

Front

Which state of matter has particles that move quickest?

Back

Gas. In gases, particles are far apart and move freely, allowing them to move quickly.

Front

What is a substance that has no definite volume or shape?

Back

Gas. Gases take the shape and volume of their container.

Front

What does it indicate when two solutions are added together and the new solution becomes hot?

Back

It indicates that a chemical change is taking place, often due to an exothermic reaction.

Front

What is a common sign that a chemical change has occurred?

Back

A chemical has turned a different color.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

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

Front

What are the three states of matter?

Back

Solid, liquid, and gas.

Front

What happens to the particles in a solid?

Back

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

Front

What happens to the particles in a liquid?

Back

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