Introduction

How often have you heard the following expressions?

• I am all out of energy.
• There is an energy crisis.
• This music is high energy dance music.

1. Add some other expressions about energy to this list.
2. What do you think the word 'energy' means? Write down your ideas. There is no right or wrong answer.
3. Today we make a lot of use of solar energy, or solar power as it is sometimes called.
   1. What devices do you have in your house that use solar energy?
   2. What other devices use solar energy?
   3. Is solar energy always good?
   4. What are some problems related to solar energy? (The Hot cars investigation shows one of the serious effects of solar energy.)

Do not worry if you cannot answer all these questions in detail. You will be able to review your answers at the end of the module.