MATTER

• Matter is anything that has mass and takes up spacd
• Your body is matter. Air is matter.
• Light and sound are not matter.

Key Terms

• Mass
• Weight
• Density
• Volume

Physical/chemical properties

• A characteristic of a substance that can be observed without changing the identity of the substance is a physical property.
• A chemical property describes a substance's ability to change into a new substance with different properties.

physical and chemical properties

• Physical Properties: melting/boiling point, thermal conductivity, weight, density, color, texture, etc.
• Chemical properties: flammability, reactivity, radioactivity

Atoms, Elements, Compounds, Mixtures

• Atoms
• Elements: Hydrogen
• Compound: H2O
• Mixture (heterogeneous and homogeneous)

Common States of Matter

• Solid
• Liquid
• Gas

thus concludes the presentation