Name: Class: S1 Curriculum for Excellence Science Matter Learning Intentions By the end of this unit I will be able to 1. Classify substances as solids, liquids and gases 2. State that liquids can flow 3. State that liquids take up the shape of the container 4. State that solids do not flow 5. State that solids have a fixed shape 6. State that when solids and liquids are heated they expand 7. State that when solids and liquids are cooled they contract 8. State that it takes more heat to make a solid expand than a liquid 9. State that when a solid is given enough energy, it will melt (turn into a liquid) 10. When a liquid is cooled, it can turn back into a solid (freezing) 11. When a liquid is heated , it can turn into a gas (evaporation or boiling) 12. When a gas is cooled, it can turn back into a liquid (condensing) 13. State that gases can spread out and take the shape of the container 14. State that gases expand when heated (much more than solids and liquids) 15. State that oxygen is a gas which takes up approximately 21% of the air 16. Describe the test for oxygen – it relights a glowing splint 17. Give some uses of the gas oxygen e.g it helps people who have difficulty breathing, breathe easier 18. State that carbon dioxide is another gas which we breathe out 19. State that carbon dioxide takes up less than 1%of the air Name: Class: 20. Give some uses of carbon dioxide e.g it is put in drinks to make them fizzy 21. Describe the test for carbon dioxide – it turns lime water milky/cloudy 22. State that nitrogen is another gas which takes up approximately 78% of the air 23. State that nitrogen is a colourless, tasteless and odourless gas 24. State that nitrogen does not let things burn and does not turn lime water milky/cloudy 25. Give some uses of the gas nitrogen e.g it is used to preserve foods 26. Describe the difference between solids, liquids and gases using the kinetic theory of matter 27. Describe that the particles in a substance move faster and closer together when they are heated and compressed 28. Clearly define the term ‘diffusion’ as the spreading out of particles of one substance through another 29. State that diffusion is faster in gases than in liquids 30. Clearly define the term ‘dissolving’ as the process in which solid particles are broken up by a liquid 31. Carry out an investigation to find out how stirring and/or heating affects the speed of dissolving 32. State that an insoluble solid is one which does not dissolve in a liquid
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