How to Create a Closed Terrarium

The video tutorial guides viewers through creating a closed terrarium, a self-sustaining ecosystem in a jar. It covers the materials needed, such as a jar, plants, soil, and stones, and explains the steps to build the terrarium, including creating a false bottom, adding soil, and planting. The tutorial also discusses the importance of watering with natural water sources and the role of insects in decomposition. It highlights the terrarium's self-sustaining nature through the water cycle and gas exchange between plants and insects, concluding with the benefits of having a terrarium.

What is a terrarium?

• A garden in a pot

• A type of aquarium for fish

• A type of greenhouse

• A sealed ecosystem in a jar

What is the purpose of the false bottom in a terrarium?

• To make the terrarium look pretty

• To allow insects to live

• To separate the soil from the water layer

• To provide nutrients to the plants

Why is it important to use soil with leaf litter and decaying wood?

• It provides nutrients to the soil

• It helps the terrarium smell nice

• It prevents mold growth

• It looks more natural

What should you do if you notice mold in your terrarium?

• Ignore it

• Add more soil

• Remove it with tweezers

• Add more water

Why is it better to use natural water sources for the terrarium?

• They are easier to collect

• They are more abundant

• They are free of chemicals

• They contain essential minerals

How does the water cycle work in a closed terrarium?

• Water evaporates and escapes the jar

• Water evaporates, condenses, and falls back like rain

• Water is absorbed by the plants and disappears

• Water is filtered by the soil and stays at the bottom

What role do insects play in a terrarium?

• They eat the plants

• They pollinate the plants

• They decompose dead matter

• They provide oxygen

Why might some people choose not to add insects to their terrarium?

• Insects are not necessary for decomposition

• Insects can damage the plants

• Insects are hard to find

• Insects require special care

How do plants and animals in a terrarium contribute to the air supply?

• Plants and animals both produce carbon dioxide

• Animals produce oxygen through photosynthesis

• Animals produce oxygen through respiration

• Plants produce oxygen through photosynthesis

What is the main benefit of having a closed terrarium?

• It is easy to create

• It can be placed anywhere

• It allows for a variety of plants

• It requires no maintenance