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Double Tap Century #Critical Thinking
21 st
Skills
Look at the pictures. Write H for human-made and N for natural things in the
box below each picture.
MACHINE
There are many man-made things that help us do our work easily and quickly. They
save our time. Such things are called machines. For example:
Refrigerator keeps food Washing machine washes and Vacuum cleaner
cool and fresh. cleans our dirty clothes. cleans a room.
Sharpener sharpens a Air conditioner (AC) Sewing machine
pencil. keeps the room cool. stitches our clothes.
12 Premium Edition-I

