Inventions


Open the CD rom The way things work 2.0 .  Follow David to the warehouse. Once you're there,
 

    1. Click on:
    1. Choose another invention and make two questions on it.
    2. In your notebook, draw a table like the one following and fill in the information required.
Machines
Questions
Inventor
Year
Principle
Hot-air balloon Which gas does it use?


What is the envelope made of?
 		      
Electric guitar What are its different parts?

What are the tuning pegs for?
 		      
Microwave oven What is the timer for?

What are microwaves?
 		      
Personal Computer Name two peripherals

What is the modem for?
 		      
Telephone Which parts does a telephone have?

Where is the loudspeaker?
 		      

Your machine
     

 Check your answers
 

If your answers were right, close the CD application and click here to continue.