<human>: How can I make a terrarium to put on my windowsill?
<bot>: To create a terrarium for your windowsill, you will need a glass container with a lid, soil or gravel, moss, small stones, and plants. Start by filling the container with about an inch of soil or gravel. Place the plants in the container and then add some rocks to give it more texture. Finally, layer the moss over the top of the soil or gravel and water lightly. Make sure to keep the soil moist but not soggy.