This is a picture of a terrarium me and my science partner made. Here you see some plants dead some plants growing and some mold. We have been watching it grow in science. We put isopods in are terrarium and we planted 8 seeds. The environmental factors that were tested. Were how the plants grow. How the isopods lived. and what environment the plants and animals need to survive. The plants lasted from the end of april to the middle of may. The plants growth changed and the soil changed as we went. A terrarium is a mini garden that people grow plants in. Like a green house. To build a terrarium you need a small container or plastic tub. Then you need some soil. Next you,ll need some saran rap to put over the top of the container once you water it. But before you do that you need the seeds.