Properties of Matter
What matter is, its three states, and the properties we use to describe it.
Learning goals
- What Is Matter?Explain that matter is anything that has mass and takes up space.
- Solids, Liquids, and GasesCompare the three states of matter by whether they hold their shape and volume.
- Matter Is Made of ParticlesExplain that matter is made of tiny particles, and how the particles are arranged in solids, liquids, and gases.
- Describing PropertiesDescribe matter using observable properties such as colour, texture, hardness, and state.
- Comparing MaterialsCompare materials by their properties and explain why each suits its use.
Changes in Matter
Melting, freezing, mixing, burning โ how matter changes and which changes can be undone.
Learning goals
- Changes of StateName the changes of state โ melting, freezing, evaporation, and condensation โ and give everyday examples.
- Heating and Cooling MatterExplain how adding or removing heat changes the state of matter.
- Physical ChangesIdentify physical changes as changes in form or state that do not make a new substance.
- Chemical ChangesIdentify signs of a chemical change, such as a new colour, a gas forming, or heat being given off.
- Reversible or Not?Classify everyday changes like freezing, cooking, and rusting as reversible or irreversible.