Energy Conversion Renewable and NonRenewable Energy Subject Integrated

Energy Conversion Renewable and Non-Renewable Energy Subject: Integrated Science Teacher: Miss Johnson Grade: Seven (7)

Objectives • Explain how energy is converted from one form to another. • Construct simple diagrams to show energy is converted. • Differentiate between renewable and non-renewable sources of energy. • Give examples of renewable and non-renewable energy.

Energy Conversion There are many different forms of energy and one form can be changed into another. Energy cannot be made, and it cannot be lost. When energy is used it is always changed from one form into another. This is energy conversion or energy transformation.

Energy Conversion The law of conservation of energy Energy can neither be created nor destroyed, but can be changed from one form to the next

Energy Conversion As it was mentioned in the previous lesson, energy forms include but not limited to; Electrical energy Solar energy Chemical energy Sound energy Light energy etc. Energy can be converted from one of these forms to another. This energy conversion can be represented by flow diagrams.

Energy Conversion Converted by plants Chemical energy Solar energy can be converted to chemical energy by the process of photosynthesis in plants.

Energy Conversion Converted by humans Kinetic (Movement) energy Chemical energy can be converted to movement energy in humans by the process of respiration. Respiration is the process by which organisms produce energy. Energy is required for movement.

Energy Conversion Sound energy Appliances Kinetic Energy (Movement) Heat Energy

Energy Conversion Appliances can convert electrical energy into sound energy, kinetic energy as well as heat energy. • A blender converts electrical energy to sound energy. • A washing machine converts electrical energy to kinetic energy (movement). • An iron converts electrical energy to heat energy.

Energy Conversion A lit candle Light energy When a candle is lit, the chemical energy stored in the wax is converted to light energy as well as heat energy.

ACTIVITY In your notebooks, state at least two (2) ways by which energy can be converted from one form to the another. Ensure not to include any which were already listed in the lesson. NB: The last two objectives were covered in the previous lesson

FUN FACT The heart can continue beating even when it’s removed from the body.

THE END