Electricity | Year 2 Science IGCSE (Cambridge) - Class 2 PDF Download

Introduction to Electricity

Electricity is a type of energy we use to power our electronic devices and light up our homes. It is essential for many things we use every day, like TVs, lights, and even amusement park rides.

Sources of Electricity

• Fossil Fuels:
  • Natural resources like coal, gas, and oil are found underground.
  • Power plants burn these fuels to create steam.
  • Steam turns turbines (like big egg beaters), which generate electricity.
  • Example: Power plants use coal to create electricity for cities.
• Wind Energy:
  • Wind turbines capture wind energy.
  • Wind turns blades, which spin a generator to make electricity.
  • Example: Wind farms use wind to generate electricity for homes.
• Hydroelectricity:
  • Dams collect water, creating pressure.
  • Pressurized water turns turbines, generating electricity.
  • Example: Dams use water to produce electricity for towns.
• Solar Energy:
  • Solar panels capture sunlight.
  • Panels convert sunlight into electricity.
  • Example: Solar panels on rooftops power homes and schools.

Transporting Electricity

• Electricity travels through cables and wires from power plants to homes, schools, and workplaces. It is ready for us to use whenever we need it.

Saving Electricity

• It's important not to waste electricity. Remember to turn off lights and devices when they're not in use to save energy.

Conclusion

Understanding where electricity comes from helps us use it wisely. We can use different natural resources like fossil fuels, wind, water, and the sun to create electricity. By saving electricity, we can help protect our environment and ensure there's enough energy for everyone.