Theory of particles

What does the particle theory explain?

• The process of photosynthesis

• The history of chemical reactions

• The properties of solids, liquids, and gases

• The structure of DNA

What is matter made from?

• Only atoms

• Energy and forces

• Only molecules

• Sub-atomic particles such as atoms and molecules

What cannot be easily compressed?

• Vacuum

• Solids and liquids

• Plasma

• Gases

What can flow and take the shape of their container?

• Liquids

• Solids

• Both liquids and gases

• Gases

What has a fixed volume but no fixed shape?

• Solids

• Gases

• Plasma

• Liquids

What can be compressed because their particles are far apart?

• Gases

• Liquids

• Solids

• Both liquids and solids

What has no fixed shape or volume?

• Ions

• Solids

• Gases

• Liquids

What are the particles in the diagrams?

• Only molecules

• Only ions

• Only atoms

• Atoms, molecules, or ions

What cannot flow because their particles cannot move from place to place?

• Plasma

• Gases

• Liquids

• Solids

What has a fixed volume and a fixed shape?

• Solids

• Liquids

• Both liquids and gases

• Gases