Page 162 - SK Year 6 Science DLP
P. 162
Appreciate Our Earth
With advanced technology, humans tend to produce
a variety of products that last longer, can withstand Why do we need to
high temperature, and are easy to use. Plastic bags, use non-biodegradable
synthetic fabrics, and computer items are among wastes wisely?
materials that are non-biodegradable and are
increasingly produced around the world.
These materials do not decay when thrown
away and remain in the environment for a long time.
Therefore, we must use them wisely.
Based on the bar chart,
how can we save energy Amount of energy needed
for production
in the production of non-
biodegradable materials?
Product
aluminium glass paper
Energy used to create Energy used to create new
new products from products by recycling.
raw materials.
Urban area
How can non-biodegradable
wastes contribute to
environmental pollution?
154 9.1.4
Toxic wastes thrown
into the river
