Although you can recycle plastic bottles, they will eventually lose their recyclable qualities and the plastic will find its way into the earth and sea.
An Ecobrick is a reusable building block created by packing clean and dry used plastic such as plastic bags into a plastic bottle. Around the world people are using Ecobricks to build in a whole new way, from indoor furniture to gardens, parks and structures.
Watch this short Ecobricks film which shows how communities are using ecobricks to tackle waste in the Philippines.
Collect some plastic bottles and plastic waste to make your own Ecobricks. A number of schools are using them to make planters and raised beds to grow plants in their school gardens. Make a list of ideas of structures that you could build with them.