7.1 OpenSciEd

Front

What happens to a substance that is less dense than water?

Back

It will float.

Front

What type of system allows matter and energy to flow in and out?

Back

An open system.

Front

What can be broken down and rearranged: molecules or atoms?

Back

Molecules can be broken down and rearranged; atoms cannot and will always be the same.

Front

What is a copy of our Classroom ______?

Back

Norms.

Front

What are the three states of matter?

Back

Gas, liquid, solid.

Front

Define density in terms of matter.

Back

Density is the mass of a substance divided by its volume.

Front

What is the difference between an open system and a closed system?

Back

An open system allows the exchange of matter and energy with its surroundings, while a closed system does not.

Front

What is the principle of conservation of mass?

Back

The principle states that mass cannot be created or destroyed in a chemical reaction.

Front

What are the characteristics of solids?

Back

Solids have a definite shape and volume, and their particles are closely packed together.

Front

What are the characteristics of liquids?

Back

Liquids have a definite volume but take the shape of their container, and their particles are less tightly packed than in solids.