Human: How do I make my own terrarium? Assistant: 
To make your own terrarium, you will need some glass or plastic containers with lids, a small amount of soil, gravel or stones, plants and potting soil, water, and decorations. Start by filling the container with about an inch of soil, then place the stones and gravel on top. Place the plants in the container and add more soil to cover them. Water the soil until it is saturated. Add any decorations you want and seal the lid tightly. Make sure to keep the soil moist but not too wet.