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- What If? Lab What if a rainforest had little rain? Rainforests are tall, green forests that get a great deal of rain. In 2005 and 2010, big droughts hit the Amazon rainforest, and satellites watched what happened to its trees. Use those real events to imagine a rainforest with little rain: drier leaves, hungry animals and a forest that might change.
- What If? Lab What if a cactus grew in a rainforest? Desert cacti are built to save every drop of water. A rainforest gets rain almost all year. Move a desert cactus into the rainforest and its water-saving tricks could turn into trouble, because soggy soil can make its roots rot. Yet some cacti really do live in rainforests, high up in the trees!
- What If? Lab What if it rained every day? Rain is wonderful: it waters plants and fills rivers. But what if it rained every day? Soil can only soak up so much, so more water would run into rivers. Some rainforests and mountain slopes get rain very often, and life there is built for it. Explore what daily rain would change.
- What If? Lab What if Earth had no deserts? About one third of Earth's land is desert. Deserts form where sinking air dries out the sky or mountains block the rain, and they are home to animals found nowhere else. Their dust even blows across an ocean to feed the Amazon rainforest. Imagine Earth with no deserts and see what would change.