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Warm Circle the pictures in which people are 21 st
Up! using machines. Century #Critical Thinking
Skills
How do Machines Work? 9 WHAT ARE MACHINES?
Friends, we all know that we need energy to work. Similarly,
machines also need energy to work. Different machines require
different types of energy to work.
Some machines work Some machines run Some machines
with the help of on fuel, such as an run on electricity,
human power, such aeroplane, a car, and such as a washing
as a bicycle and a a bus. machine, a fan,
sewing machine. a mixer, and a
refrigerator.
Computer Ethics Century #Leadership & Responsibility
21 st
Skills
We should never pull or play with the wires connected to our computer.
We should always keep our computer neat and clean.
We should not eat or drink near our computer.

