Recycling
What is recycling?
Changing waste into a new product
What are bioplastics?
Bioplastics are plastics made from renewable biological resources like plants, rather than from fossil fuels
What is the water cycle?
The continuous movement of water.
What are the three main rocks types?
Igneous, sedimentary and metamorphic
What is black water?
Water containing sewage
Why is recycling important for the environment?
Recycling reduces the need for raw materials, saves energy, conserves natural resources, and reduces pollution.
Give an example of a material used to make bioplastics
Starch and glucose
What happens during evaporation?
Water is turned from a liquid to a gas.
How are sedimentary rocks formed?
Sedimentary rocks are formed from the build up of sediments over time, which are compacted and cemented together.
What is grey water?
Water left over from washing and cleaning
Name three materials that can be recycled.
Glass, metal and plastic
Why are bioplastics considered environmentally friendly?
They break down over time and are made from renewable resources
What is precipitation?
Rain
How are igneous rocks formed?
The cooling of lava and magma
Is black water safe to use?
No
What is the difference between recycling and reusing?
Recycling involves processing used materials to create new products.
Reusing means using an item again in its current form.
What is the main advantage of using bioplastics over traditional plastics?
They reduce the need for fossil fuels and reduce pollution.
What is the process where water is drawn out of plants by the sun?
Transpiration
If a rock contains sand, pebbles and other whole rocks what rock type is it?
Sedimentary
What is a safe use for grey water?
Watering lawns
How does recycling help reduce landfill waste?
Recycling helps keep materials away from landfills by making them into new products instead of throwing them out.
Can bioplastics be recycled?
Generally no
Water changing from a gas to a liquid before raining is called?
Condensation
What is the outer most layer of the Earth's crust called?
Lithosphere
Why should black water be treated before being reused or released into the environment?
Black water contains harmful pathogens and pollutants that can contaminate water sources and harm public health.