"Liquid Oxygen" article questions

Front

What must happen for oxygen to change to a liquid?

Back

The attraction that pulls molecules toward each other must overcome energy that pulls them apart.

Tags

NGSS.MS-PS1-4

Front

Why is liquid oxygen difficult to find?

Back

The attraction between oxygen molecules is not very strong.

Front

What must be done to change oxygen to a liquid?

Back

Energy must be transferred out.

Tags

NGSS.MS-PS1-4

Front

How do scientists separate oxygen from the air?

Back

They send the air through a machine with tanks at different temperatures.

Front

What is the process of changing gases to liquids primarily about?

Back

It is all about the attraction between molecules.

Tags

NGSS.MS-PS1-4

Front

What is liquid oxygen?

Back

Liquid oxygen is oxygen that has been cooled to a very low temperature, causing it to become a liquid.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What happens to the energy of molecules when they are cooled?

Back

The energy decreases, allowing the attraction between molecules to take over.

Tags

NGSS.MS-PS1-4

Front

What is the boiling point of oxygen?

Back

The boiling point of oxygen is -183 degrees Celsius.

Tags

NGSS.MS-PS1-4

Front

What is the state of oxygen at room temperature?

Back

Oxygen is a gas at room temperature.

Tags

NGSS.MS-PS1-4

Front

What is the significance of liquid oxygen in space exploration?

Back

Liquid oxygen is used as an oxidizer in rocket fuel.