VOCABULARY UNIT 3

• Wireless: Without wire.

• Mechanical: That is related to machinery or tools.

• Solar Powered: It use solar rays to produce electricity to use electrical things.

• Chemical: Is a sustance that is made by using chemicals.

• Energy-saving: A mechanical device that don't waste electricity.

• Innovative: A device that is new and give another ways of using things.

• Adaptable: It can adapt itself to any conditions.
• Alternative: something that is different from the usual or traditional way.
• Rush hour: a time of day in which large numbers of people are traveling to or from work.
• Mad search: when you want to find something very quickly.
• To be greener: to be environmentally friendly.