1. UNIT 3.6 Conservation IGCSE Y7 SCIENCE Prepared by Ms Wong

2. Introduction It is important to see that not everything we do causes damage and there is a lot that can be done to help to preserve the environment. IGCSE Y7 SCIENCE Prepared by Ms Wong Taking care of environment and helping other species to survive is called CONSERVATION

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4. But HOW? Stop using CFC IGCSE Y7 SCIENCE Prepared by Ms Wong Burn less fuel This allows the ozone layer to recover So that less carbon dioxide added to atmosphere Bury rubbish carefully As the rubbish rots, it produces methane gas which can be collected and used as a fuel

5. Methane Emission from Landfills

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8. Questions IGCSE Y7 SCIENCE Prepared by Ms Wong 1. What is conservation? Conservation means taking care of the environment, and helping other kinds of living organisms to survive. 2. Explain how the landfill site shown in previous slide helps wildlife to survive. Pollutants cannot escape through the waterproof liner, so animals living near the site will not be harmed by them. Water from the site is treated to make it safe. Soil and grass cover the rubbish, preventing most animals from coming into contact with it.

9. Summary Conservation means looking after the environment so that animals and plants can live there. IGCSE Y7 SCIENCE Prepared by Ms Wong Reducing pollution and preserving habitats are important ways of looking after the environment.