Leaves and stems
Air filters
The leaves of plants help to clean the air that we breathe. When plants make food, they take in dioxide and give out oxygen.
Raw materials
The stems of some plants are very strong and can be used as a raw material. This material is known as wood. It can be used to make furniture and even build hourses.
The fibre that wraps the seeds of the cotton plant can also be used to make clothes.
(Cotton is collected from this plant and weaved into cloth for our clothes.)