molecules. Describe qualitatively the to illustrate as much as possible (e.g. effect of a change of temperature on the crystal model). pressure of a gas at constant volume. Show an understanding of the random This to be set-up beforehand. motion of particles in a suspension as evidence for the kinetic molecular model of matter. Describe this motion (sometimes known as Brownian motion) in terms of random molecular bombardment. 2 lessons Evaporation Simple demo: Acetone (propanone) Worksheets and 2.1c Describe evaporation in of the on the skin. Lab report PowerPoint’s available escape of more-energetic molecules on the S-drive. from the surface of a liquid. Relate An investigation into the factors evaporation and the consequent cooling. affecting rate of evaporation. This is a good opportunity to do Demonstrate an understanding of how some investigative work. This be temperature, surface area and draught a good planning opportunity. over a surface influence evaporation. Mention how refrigerators use the cooling effect of evaporation. 1 lesson You could demonstrate temperature Worksheets and Heating gases 2.1d Relate the change in temperature of a and volume change using a round PowerPoint’s available gas to change in pressure applied to the bottom flask (containing air) and a on the S-drive. gas at constant volume. capillary tube (containing a small The use of p1/T1=p2/T2 amount of coloured liquid). Warm Use of data loggers to the air and the coloured liquid will record data from Understanding of the Kelvin scale and rise. Or you can turn it upside down, and students to use absolute zero. so the capillary tube is in the water data in Excel to produce and you can see bubbles in the graphs. water. This is a good opportunity to A good simulation on reinforce graph drawing skills. Physics on the network to get ideal results. 3 lessons Thermal 2.2(a) Describe qualitatively the thermal Experiments to show expansion of a Worksheets and expansion of 2.2(b) expansion of solids, liquids and gases. rod and the breaker’ PowerPoint’s available ‘bar solids, liquids Identify and explain some of the demonstration. Bi-metallic strips. A on the S-drive. and gases everyday applications and consequences large round bottom flask filled with of thermal expansion. Describe (coloured) water and fitted with a
molecules. Describe qualitatively the effect of a change of temperature on the pressure of a gas at constant volume. Show an understanding of the random motion of particles in a suspension as evidence for the kinetic molecular model of matter. Describe this motion (sometimes known as Brownian motion) in terms of random molecular bombardment. to illustrate as much as possible (e.g. crystal model). This to be set-up beforehand. 2 lessons Evaporation 2.1c Describe evaporation in of the escape of more-energetic molecules from the surface of a liquid. Relate evaporation and the consequent cooling. Demonstrate an understanding of how temperature, surface area and draught over a surface influence evaporation. Simple demo: Acetone (propanone) on the skin. An investigation into the factors affecting rate of evaporation. This is a good opportunity to do some investigative work. This be a good planning opportunity. Mention how refrigerators use the cooling effect of evaporation. Worksheets and PowerPoint’s available on the S-drive. Lab report 1 lesson Heating gases 2.1d Relate the change in temperature of a gas to change in pressure applied to the gas at constant volume. The use of p1/T1=p2/T2 Understanding of the Kelvin scale and absolute zero. You could demonstrate temperature and volume change using a round bottom flask (containing air) and a capillary tube (containing a small amount of coloured liquid). Warm the air and the coloured liquid will rise. Or you can turn it upside down, so the capillary tube is in the water and you can see bubbles in the water. This is a good opportunity to reinforce graph drawing skills. Worksheets and PowerPoint’s available on the S-drive. Use of data loggers to record data from and students to use data in Excel to produce graphs. A good simulation on Physics on the network to get ideal results. 3 lessons Thermal expansion of solids, liquids and gases 2.2(a) 2.2(b) Describe qualitatively the thermal expansion of solids, liquids and gases. Identify and explain some of the everyday applications and consequences of thermal expansion. Describe Experiments to show expansion of a rod and the ‘bar breaker’ demonstration. Bi-metallic strips. A large round bottom flask filled with (coloured) water and fitted with a Worksheets and PowerPoint’s available on the S-drive.