Page 13 Temperature ACTIVITY 11: CHANGE OF STATE Use the diagram to answer the questions that follow: Cools SOLID Warma Freezes Coola LIQUID Warma Condenses Boils Cools 00 0 0 0 0 P8 00 0 GAS Warms Heat Energy 1. Comparing solid and liquid particles in the diagram above, which particles have more spaces between them? 2. Which of the three states of matter have no spaces between them? 3. Looking at diagram, what do we call the change in state from solid to liquid? 4. Discuss the effect of temperature on matter from solid state, to liquid and lastly to gas state. 5. Discuss by referring to the diagram how matter changes from gas to liquid and from liquid to solid. 6. Karabo's ice cream just melted, how can she get it back to a solid state? 7. Why do ice cubes in your cooler box start melting after a while? Grade 8 Term 2 informal Tasks Page 14