Page 209 - SK Year 6 Science DLP

MACHINES
MACHINES
MESIN
Invention of a Sustainable Machine

Machines are invented to assist us in completing daily work.
Sustainable machines will be invented from time to time to provide
more benefits to humans. What is a sustainable machine? The word
sustainable means unchanged, eternal, and fixed. Sustainable
machines are machines that are durable, not easily damaged,
cost-effective, do not have adverse effects on the environment, easy,
and safe to use.

Why is the invention of sustainable machines important
to humans? Let’s look at the situations below.
Agriculture

then now then now

ploughing land harvesting paddy
The pictures above show two methods used by farmers for ploughing land
and harvesting paddy. What is the importance of inventing a land ploughing
machine and a paddy harvesting machine?

Industrialisation
manual motorised machine manual motorised machine

mixing cement at construction sites lifting loads in a warehouse

How do the machines shown in the above situations help the workers to
complete their work more efficiently? Explain the importance of inventing other
sustainable machines in industries.

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