Slide 1: Introduction to Heat
- What is heat?
- Heat is a form of energy.
- It makes things warmer.
- We experience heat everyday!
Slide 2: Sources of Heat
- Natural sources: the Sun, fire, geothermal energy.
- Man-made sources: heaters, stoves, and engines.
- Everyday examples of heat sources.
Slide 3: Heating and Cooling
- Heating: adding heat energy to an object.
- Cooling: removing heat energy from an object.
- How heat changes temperature.
Slide 4: Heat Transfer – Conduction
- Conduction is the transfer of heat through a solid.
- Example: Touching a metal spoon in hot soup.
- Why metals are good conductors of heat.
Slide 5: Heat Transfer – Convection
- Convection is the transfer of heat in fluids (liquids and gases).
- Example: Boiling water in a pot.
- The role of currents in convection.
Slide 6: Heat Transfer – Radiation
- Radiation is the transfer of heat through space.
- Example: Feeling the heat from the Sun.
- No medium is needed for radiation to occur.
Slide 7: Insulators and Conductors
- What is a conductor?
- Common conductors: copper, aluminium, metals.
- What is an insulator?
- Common insulators: rubber, wood, plastic, and air.
Slide 8: Everyday Uses of Heat
- Cooking food: How heat changes food.
- Heating our homes: The importance of keeping warm.
- Industrial uses: Manufacturing processes requiring heat.
Slide 9: Measuring Heat
- Introduction to thermometers.
- How do thermometers work?
- Celsius vs Fahrenheit.
- The freezing and boiling points of water.
Slide 10: Fun Facts about Heat
- Did you know?
- The Sun’s heat reaches Earth in about 8 minutes!
- Heat can even move through a vacuum!
- Heat energy can be converted to other forms of energy.
{The image of a bright, sunny day illustrating the Sun's warmth with people enjoying outdoor activities.}
{The image of a thermometer showing different temperature levels, highlighting Celsius and Fahrenheit.}
{The image of boiling water in a pot to demonstrate convection, with visible steam rising.}