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Marvelous Machines
Meet Sam and Lisa. They are going on an exciting journey! To start, they ride their bicycles. Did you know a bicycle is a complex machine? It has simple machines like wheels and axles that make it move! Next, they see a big crane lifting heavy things. The crane uses simple machines like levers and pulleys. Finally, before bedtime, they look at a clock. Its hands move because of gears, another simple machine. Complex machines help us every day!
Question 1
What is a bicycle considered as?
A complex machine
A simple machine
A toy
A type of food
A type of animal
Question 2
What simple machines does a crane use?
Levers and pulleys
Gears and wheels
Axles and wheels
Levers and gears
Pulleys and axles
Question 3
What makes the hands of a clock move?
Gears
Levers
Pulleys
Wheels
Axles
Question 4
What is not a simple machine?
Clock
Wheel
Axle
Lever
Pulley
Question 5
Who are the characters going on an exciting journey?
Tom and Jerry
Harry and Hermione
Katniss and Peeta
Frodo and Sam
Sam and Lisa
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