Environments for Years 3, 4, 5 & 6 kids learning science at primary school, Key Stage 2 (KS2). Homework help with the seasons, recycling and dealing with rubbish.
Rubbish and recycling
Not clearing up litter or rubbish can be harmful to the environment. Broken glass can be stepped on, plastic is a choking hazard to animals. Leave litter lying around can damage in the environment in which wild animals live in and pollute our seas.
Plastic, paper, glass, metal, food, garden waste can all be recycled. Recycling this waste can save it going into landfill sites and being buried in the ground. It takes a long time for our rubbish to rot in the ground. A plastic bag takes 10-20 years, nappies take 450 years and a glass bottle takes a whopping 1 million years!
See how long it takes for our rubbish to rot.
What we are doing to the environment
Every day we are harming our environment. With a growing population, we are producing far more waste than the earth can cope with. We are also causing pollution in other ways.
Using pesticides, herbicides on crops for farming and filling landfill sites with rubbish contaminate the soil. The harmful chemicals from all these things slowly seep into the soil and kill the nutrients inside the soil which is needed to grow plants.
Those same pesticides and herbicides also travel through the streams and rivers to contaminate the water. Did you know that nearly a billion people do not have access to clean, drinkable water?
Burning fossil fuels and toxic gases in factories is contaminating the air that we breathe. 3.5 million deaths occur every year due to air pollution.
See how we make a positive and negative affect on our environment.
The ozone layer is to protect the earth from harmful radiation. It is a layer of greenhouse gases to keep the planet warm. The gases are Methane, Nitrous Oxide and Carbon Dioxide they keep the heat in like a greenhouse. We are creating more gases, Carbon Dioxide from factories and cars so the earth gets warmer than it should get and changes the weather patterns – winds and hurricanes & heavy rain. Ice caps may melt and water levels will rise creating flooding. Lack of rain in the drier parts of the world will make it even harder to grow food.
Humans affect the environment in positive and negative ways. Watch the video then answer questions on what these things are.
We can all make a difference to our planet and reduce the number of greenhouse gases we put in our atmosphere by saving energy around the home.
- Turn lights off when you have left a room. Turn all electrical devices off when you have finished with them. This includes TV’s, computers, game consoles. Putting them on standby still uses electricity.
- Turn the thermostat down. This controls how warm your house gets. By turning it down by 10 degrees can make all the difference.
- Shut the fridge and freezer door. Every time you open the door one-third of the cold air escapes and it takes more energy to cool the appliance down again.
- Change your light bulbs. You can now get energy efficient light bulbs that use less electricity.
- Take showers instead of baths. They use less water which means you will not only save energy in heating less water you will also save water too.
- Turn the tap off while brushing teeth. Only turn on the the tap when you need it.
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