Terrariums are glass containers that can be opened for maintenance and to access the plants inside. Terreriums can be classified into two different types; Open or closed. Moisture from both the soil and plants evaporates in the elevated temperatures inside the terrarium. Water vapour then condenses on the walls of the container, and eventually falls back to the plants and soil below. This contributes to creating an ideal environment for growing plants due to the constant supply of water, thereby preventing the plants from becoming over dry. In addition to this, the light that passes through the transparent material of the terrarium, allows for the plants within to photosynthesize, an important aspect of plant growth.