1. Think of some compound machines in the kitchen. e.g., scissors
• What is each machine for? • How does it work? • Which simple machines make up the compound machine? 2. Write a paragraph about one of the compound machines.
Project
1. Research these tools. • a file • a vice • a hacksaw • a punch • snips • pliers
2. What does each machine do? How does it work? 3. Is each one a simple machine or a compound machine?
Can you use words from the unit? Look at the Word list for Unit 3 on page 227 and do the tasks.
• Find the names of tools. • Find a verb for each tool. Can you now …
Yes
… recognize examples in a talk? … end a talk correctly? … introduce yourself? … understand and describe a process? … make sentences with a subject, verb and object?