Rainforest Biome
Rainforest plants need lots of this in the air to stay healthy.
What is humidity (or moisture)?
The ocean at Biosphere 2 holds this many gallons of saltwater.
What is 700,000 gallons?
Cacti store water in these thick parts of their body.
What are stems (or leaves)?
Biosphere 2 was built as this type of closed environment.
What is a sealed system?
Biosphere 2 was built in the late 1980s in this state.
What is Arizona?
Plants do this when they don't get enough water.
What is wilt (or droop)?
Corals need this from the sky to survive.
What is sunlight?
The coastal desert gets water from this instead of rain.
What is fog?
Humans living inside for 2 years would need to grow this.
What is food?
Earth is called this, and that's why the lab is called Biosphere 2.
What is Biosphere 1?
Some rainforest plants have these special roots that hang in the air.
What are aerial roots?
These tiny algae live inside corals and help them get energy.
What are zooxanthellae (accept: algae)?
Cacti have these sharp things instead of leaves.
What are spines?
The frame of Biosphere 2 is made of this strong metal.
What is steel?
The original goal was to test if humans could live in this place.
What is outer space?
You can see this cycle in the rainforest with water droplets on leaves.
What is the water cycle?
When oceans get too much CO₂, this makes the water more acidic.
What is ocean acidification?
The desert is very dry but the rainforest has lots of this.
What is humidity (or moisture or water)?
Plants make this gas that humans need to breathe.
What is oxygen?
Scientists learned that plants stop absorbing CO₂ at 600 of these.
What are parts per million (accept: ppm)?
Plants release water into the air through this process.
What is transpiration?
Scientists study the ocean at Biosphere 2 because they can control this.
What is temperature (or conditions)?
Desert plants collect fog water using special hairs and this coating.
What are waxy surfaces?
This system cleans and recycles water inside Biosphere 2.
What is a water recycling system?
Today Biosphere 2 studies this big problem affecting Earth's temperature.
What is climate change (or global warming)?