Human: I've heard that you can make a terrarium in a glass bowl. Is that true? Assistant: 
Yes, you can make a terrarium in a glass bowl. You'll need some soil and plants to start with. Then you'll need to create a layer of gravel at the bottom of your bowl. Next, you should add soil or potting soil over the gravel. Finally, you should place your plants on top of the soil. Make sure to water your plants regularly and keep them well-watered.