gases

What is gas?

• Any matter that does not have definite shape (spreads out to fill a space) or does not take up a definite amount of space (volume)

• A matter that has a fixed shape and volume. Due to its rigid nature, particles in solid can only vibrate about their mean position and cannot move.

• A matter in which the particles are less tightly packed and take the shape of the container in which they are kept

• anything that has mass and occupies space

Example of gases

• BOOK

• NITROGEN

• JUICE

• NONE OF THE ABOVE

Nitrogen, ________, and carbon dioxide are the main gases in the atmosphere

What are the characteristics of gas?

• It has a fixed shape and fixed volume

• it adjusts to the shape of the object

• it does not have fixed shape and fixed volume

• it occupies space

draw molecules of gas

What gas do we use to breathe?

Helium is a chemical element with the symbol He and atomic number_________

What is the state of matter in which particles are less tightly packed and take the shape of the container?

• Solid

• Liquid

• Gas

• Plasma

Which of the following is an example of a gas?

• Iron

• Oxygen

• Water

• Wood

What is the characteristic property of gases?

• Definite shape and volume

• Particles are tightly packed

• Particles are in constant motion

• Cannot be compressed