Students Years 7-9

Compost is a natural fertiliser made from broken down organic materials.

A natural process where tiny living things called microorganisms break down organic matter into simper materials.

The natural, plant-based materials you find in your garden like grass, leaves, small branches, sticks, palm fronds and weeds.

Gases in the Earth’s atmosphere that trap heat, such as carbon dioxide and methane.

A big hole in the ground where our general waste gets buried.

Tiny living things that can break down organic matter through a process called decomposition.

Something that comes from the environment that we use, like trees, minerals and water.

The movement of nutrients from nonliving material to living organisms and back again to facilitate life on Earth.

When harmful materials contaminate the air, water, or land and make the environment dirty or unsafe.

The process of collecting and transforming materials that would otherwise become waste into new and usable things.

Something we can use.

Using resources today in a way that ensures there are enough for the future.

Anything left over or thrown away after we use or consume something.