Wake up to engineering! We can put simple machines together to make a compound machine.
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A What are the parts of this compound machine? 1. Label the materials.
a bucket a bottle of water a mobile phone a rope a piece of wood
a
a shoe a triangular block of wood some books some water three wheels
2. Find some simple machines in the compound machine, e.g., a lever.
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B How does the machine work? 1. Number the sentences below in order.
The books push the bottle of water. The bucket pulls the rope down. The lever sends the shoe into the air. The man wakes up. The phone falls onto the lever.
1 The phone vibrates on the bedside table. The rope goes over the wheels. The rope pulls the books up. The shoe falls into the bucket. The water falls from the bottle onto the man.
2. Cover the sentences above. Explain the process from the diagram at the top of the page.