604666964-Science-year-7-Cambridge-presentation-powerpoint-Unit-5-part-1.pptx

bkghiouguoguguov mmnvjgf

1. Unit 5 Chemistry States of matter

2. 5.1. Investigate properties of different states of matter . 5.2.1 Describe particles in solid, liquids and gases in terms of Motion of particles Arrangement of particles Closeness of particles 5.2.2 Explain properties of different state of matter using the particle theory of matter. Learning objectives

3. Matter is made up of tiny particles. The three states of matter are; Solid Liquid Gas 5.1 States of matter

4. Properties of Different states of matter: 5.1 states of matter   Solid Liquid Gas Shape Fixed Take shape of the bottom of the container Take shape of the whole container Volume Fixed Fixed Not fixed Fluidity Cannot flow Can flow Can flow Compressibility Cannot be compressed Cannot be compressed Can be compressed

5. All matter is made up of tiny particles. These particles are much too small to see. These particles are arranged differently in solids, liquids and gases . 5.2 Particle theory

6. 5.2 Particle theory

7. Explaining the properties: The state properties are explained using the particle theory, as shown in the following tables. Solids: 5.2 Particle theory Property Reason They have a fixed shape and cannot flow The particles cannot move from place to place due to strong forces of attraction between them They cannot be compressed (squashed) The particles are close together and have no space to move into

8. Liquids: 5.2 Particle theory Property Reason They flow and take the shape of the bottom of their container The particles can move around each other They cannot be compressed (squashed) The particles are close together and have no space to move into

9. Gases: 5.2 Particle theory Property Reason They flow and completely fill their container The particles can move quickly in all directions They can be compressed (squashed) The particles are far apart and have space to move into