States of Matter

Matter

• Anything that occupies space and has mass is called matter.
• All living and non-living things are made of matter.

States of Matter

• Matter exists in three states: solid, liquid, and gas.

Solids

• Molecules in solids are packed tightly with strong forces of attraction.
• No space between molecules to move around.
• Solids have a definite shape and size.
• Solids have a fixed volume.
• Solids occupy space.
• Solids cannot flow.
• Solids have very little or no space between molecules, making them compact and hard to compress.

Liquids

• Molecules in liquids have empty spaces between them.
• Liquids do not have a definite shape.
• Liquids have a definite volume.
• Liquids can flow.
• Force of attraction between molecules is less strong than in solids.
• Liquids can be compressed, but not as much as gases.
• Liquids occupy space.

Examples

Examples of Solids

• Wood
• Pencil
• Rubber
• Sponge

Examples of Liquids

• Water
• Juice
• Milk
• Oil

Examples of Three States of Matter

• Solid - Iceberg
• Liquid - Water
• Gas - Air

Molecules and Atoms

Molecules

• A matter (solid, liquid, or gas) is made up of tiny particles called molecules.
• Molecules are so tiny they cannot be seen with naked eyes.
• A molecule is the smallest unit of matter that has all the properties of that particular matter.
• A molecule can be further broken down into atoms.

Atoms

• An atom is the smallest unit of matter.
• Atoms form a molecule, making them the smallest unit of matter.
• The states of matter vary from each other based on the arrangement of molecules.