lunes, 27 de abril de 2015

UNIT 15 (NATURAL SCIENCE 4º)

UNIT 15: A PLANET FOR EVERYONE
WE ARE DAMAGING THE PLANET
·         We exhaust natural resources
The growing population and the way of life of the rich countries means that we consume too many natural resources and we are exhausting them.
-          We cut down too many forests. Lots of living things dissapear  because we damage their hábitats and ecosystems.
-          We use too much energy from coal and oil and it causes pollution.
-          Fresh water is limited.

·         We pollute and accumulate waste
We produce pollutants and waste.
-          Pollutants: are substances which damage the air, water or ground.
-          Waste: materials we throw away. Many of these materials do not decompose naturally.

·         Social injustice
The planet´s resources are not equally distributed.
- Rich countries: we have money and technology.
- Poor countries: people do not have the basics for life.

WHAT CAN WE DO TO SAVE THE PLANET?
·         Analyze the problems and look for solutions
Most of the problems of the planet are due to the consumer lifstyle.

·         The rule of the three R´s
-          Rreduce consumption.
-          Reuse objects and materials.
-          Recycle materials.

How to change our lives
-          We must reduce the use of natural resources and share them.
-          Using clean energy (renewable energy)
-          We must reuse, recycle and reduce  materials to produce less waste.

·         Protecting The Earth is everyonés responsibility
For example:
-          Laws to protect endangered animals and landscapes.
-          Laws limiting fishing and hunting and the cutting down of forests.
-          Campaigns to sabe and not pollute water.
-          Campaigns to use public transport.
-          Campaigns to use less heating and air conditioning.

·         Recycling waste
Recycling saves energy and natural resources. We can recycle:
1.      Paper and cardborad
2.      Glass
3.      Plastic, metals and tetra bricks
4.      Leftover food


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