Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 5.8P - Explain why heating a system will change the energy stored within the system and raise its temperature or produce changes of state. Specification Point 5.9P - Describe the changes that occur when a solid melts to form a liquid, and when a liquid evaporates or boils to form a gas. Specification Point 5.10P - Describe the arrangement and motion of particles in solids, liquids and gases. Specification Point 5.11P - Practical: obtain a temperature–time graph to show the constant temperature during a change of state. Specification Point 5.12P - Know that specific heat capacity is the energy required to change the temperature of an object by one degree celsius per kg of mass. Specification Point 5.13P - Use an equation to derive the change in thermal energy in a system. Specification Point 5.14P - Practical: investigate the specific heat capacity of materials including water and some solids. Complete set of Chapter 5 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 23 - Changes of State. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 5.8P - Explain why heating a system will change the energy stored within the system and raise its temperature or produce changes of state. Specification Point 5.9P - Describe the changes that occur when a solid melts to form a liquid, and when a liquid evaporates or boils to form a gas. Specification Point 5.10P - Describe the arrangement and motion of particles in solids, liquids and gases. Specification Point 5.11P - Practical: obtain a temperature–time graph to show the constant temperature during a change of state. Specification Point 5.12P - Know that specific heat capacity is the energy required to change the temperature of an object by one degree celsius per kg of mass. Specification Point 5.13P - Use an equation to derive the change in thermal energy in a system. Specification Point 5.14P - Practical: investigate the specific heat capacity of materials including water and some solids. Complete set of Chapter 5 Worksheets are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 5.3 - Know and use the relationship between density, mass and volume. Specification Point 5.4 - Practical: investigate density using direct measurements of mass and volume. Specification Point 5.5 - Know and use the relationship between pressure, force and area. Specification Point 5.6 - Understand how the pressure at a point in a gas or liquid at rest acts equally in all directions. Specification Point 5.7 - Know and use the relationship for pressure difference. Complete set of Chapter 5 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 22 - Density and Pressure. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 5.3 - Know and use the relationship between density, mass and volume. Specification Point 5.4 - Practical: investigate density using direct measurements of mass and volume. Specification Point 5.5 - Know and use the relationship between pressure, force and area. Specification Point 5.6 - Understand how the pressure at a point in a gas or liquid at rest acts equally in all directions. Specification Point 5.7 - Know and use the relationship for pressure difference. Complete set of Chapter 5 Worksheets are available.

Edexcel IGCSE Physics Worksheets Chapter 4 - Energy Resources and Transfer Complete set of companion PDF worksheets for Edexcel IGCSE Physics (4PH1) Chapter 4 - Energy Resources and Transfer. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Four worksheets included: 18 - Energy 19 - Thermal Energy 20 - Work and Power 21 - Sources of Energy

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 4.18P - Describe the energy transfers involved in generating electricity. Specification Point 4.19P - Describe the advantages and disadvantages of methods of large-scale electricity production from various renewable and non-renewable resources. Complete set of Chapter 4 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 21 - Sources of Energy. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 4.18P - Describe the energy transfers involved in generating electricity. Specification Point 4.19P - Describe the advantages and disadvantages of methods of large-scale electricity production from various renewable and non-renewable resources. Complete set of Chapter 4 Worksheets are available.

Complete set of PDF worksheets for Edexcel IGCSE Biology (4BI0) Chapter 1 - Living Organisms. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. All questions are original. Nine worksheets included: 1 - Characteristics of Living Organisms 2 - Variety of Living Organisms 3 - Organisation and Cell Structure 4 - Cell Differentiation 5 - Biological Molecules 6 - Food Tests 7 - Enzymes 8 - Enzymes and pH 9 - Movement Across Membranes

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 4.11 - Know and use the relationship between work done, force and distance moved in the direction of the force. Specification Point 4.12 - Know that work done is equal to energy transferred. Specification Point 4.13 - Know and use the relationship between gravitational potential energy, mass, gravitational field strength and height. Specification Point 4.14 - Know and use the relationship between kinetic energy, mass and speed. Specification Point 4.15 - Understand how conservation of energy produces a link between gravitational potential energy, kinetic energy and work. Specification Point 4.16 - Describe power as the rate of transfer of energy or the rate of doing work. Specification Point 4.17 - Use the relationship between power, work done and time taken. Complete set of Chapter 4 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 20 - Work and Power. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 4.11 - Know and use the relationship between work done, force and distance moved in the direction of the force. Specification Point 4.12 - Know that work done is equal to energy transferred. Specification Point 4.13 - Know and use the relationship between gravitational potential energy, mass, gravitational field strength and height. Specification Point 4.14 - Know and use the relationship between kinetic energy, mass and speed. Specification Point 4.15 - Understand how conservation of energy produces a link between gravitational potential energy, kinetic energy and work. Specification Point 4.16 - Describe power as the rate of transfer of energy or the rate of doing work. Specification Point 4.17 - Use the relationship between power, work done and time taken. Complete set of Chapter 4 Worksheets are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 4.6 - Describe how thermal energy transfer may take place by conduction, convection and radiation. Specification Point 4.7 - Explain the role of convection in everyday phenomena. Specification Point 4.8 - Explain how emission and absorption of radiation are related to surface and temperature. Specification Point 4.9 - Practical: investigate thermal energy transfer by conduction, convection and radiation. Specification Point 4.10 - Explain ways of reducing unwanted energy transfer, such as insulation. Complete set of Chapter 4 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 19 - Thermal Energy. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 4.6 - Describe how thermal energy transfer may take place by conduction, convection and radiation. Specification Point 4.7 - Explain the role of convection in everyday phenomena. Specification Point 4.8 - Explain how emission and absorption of radiation are related to surface and temperature. Specification Point 4.9 - Practical: investigate thermal energy transfer by conduction, convection and radiation. Specification Point 4.10 - Explain ways of reducing unwanted energy transfer, such as insulation. Complete set of Chapter 4 Worksheets are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 4.1 - Use a variety of energy units. Specification Point 4.2 - Describe energy transfers involving energy stores. Specification Point 4.3 - Use the principle of conservation of energy. Specification Point 4.4 - Know and use the relationship between efficiency, useful energy output and total energy output. Specification Point 4.5 - Describe a variety of everyday and scientific devices and situations, explaining the transfer of the input energy in terms of the above relationship, including their representation by Sankey diagrams. Complete set of Chapter 4 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 18 - Energy. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 4.1 - Use a variety of energy units. Specification Point 4.2 - Describe energy transfers involving energy stores. Specification Point 4.3 - Use the principle of conservation of energy. Specification Point 4.4 - Know and use the relationship between efficiency, useful energy output and total energy output. Specification Point 4.5 - Describe a variety of everyday and scientific devices and situations, explaining the transfer of the input energy in terms of the above relationship, including their representation by Sankey diagrams. Complete set of Chapter 4 Worksheets are available.

Complete set of companion PDF worksheets for Edexcel IGCSE Physics (4PH1) Chapter 3 - Waves. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Four worksheets included: 14 - Waves 15 - Electromagnetic Waves 16 - Reflection and Refraction 17 - Sound Waves

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 3.24P - Know that the frequency range for human hearing is 20–20,000 Hz. Specification Point 3.25P - Practical: investigate the speed of sound in air. Specification Point 3.26P - Understand how an oscilloscope and microphone can be used to display a sound wave. Specification Point 3.27P - Practical: investigate the frequency of a sound wave using an oscilloscope. Specification Point 3.28P - Understand how the pitch of a sound relates to the frequency of vibration of the source. Specification Point 3.29P - Understand how the loudness of a sound relates to the amplitude of vibration of the source. Complete set of Chapter 3 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 17 - Sound Waves. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 3.24P - Know that the frequency range for human hearing is 20–20,000 Hz. Specification Point 3.25P - Practical: investigate the speed of sound in air. Specification Point 3.26P - Understand how an oscilloscope and microphone can be used to display a sound wave. Specification Point 3.27P - Practical: investigate the frequency of a sound wave using an oscilloscope. Specification Point 3.28P - Understand how the pitch of a sound relates to the frequency of vibration of the source. Specification Point 3.29P - Understand how the loudness of a sound relates to the amplitude of vibration of the source. Complete set of Chapter 3 Worksheets are available.