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Science (X) - Elementary (X) - Middle (X) - DragonflyTV (X) - Plants (X) - Streaming (X)

Scientist Profile: Forest Canopy Researcher

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When Forest Canopy Researcher Nalini Nadkarni was young, she studied dance and biology. Now she puts on climbing gear and spends her time high up in the forest canopy of Washington State. The canopy is one of the last frontiers on Earth, and Nalini is studying how some plants in the canopy--called epiphytes--survive without having their roots in the ground. (Spanish version also available)

DragonflyTV | Nasturtium Leaves

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During the summer, Jasmine likes to volunteer at the San Francisco Botanical Gardens with her friend Melinda. During summer, their job was watering plants. While they were watering, Melinda noticed that different plants handled water in different ways. This got them thinking: why do some leaves shed water and others don't?

This video is available in English and Spanish with closed captions.

DragonflyTV | Weevils

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Elissa and Julia live in Florida where the melaleuca tree is taking over their beloved Everglades. Melaleuca originates in Australia, but when the trees were brought back to Florida, they started growing like crazy. As a result, the melaleuca overgrowth is choking out other native plants and destroying the habitat for the animals that call it home. To save the Everglades and its creatures, scientists introduced an Australian bug called a weevil. The weevil eats melaleucas and researchers hope that the bugs' feeding habits will slow down the habitat's takeover.

Sand Dunes

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This DragonflyTV segment demonstrates why plants flourish on some sand dunes but not on others, and how moisture affects the ability of sand to form dunes and support life.

Scientist Profile: Ethnobotanist

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This DragonflyTV segment introduces ethnobotanist Dave Morris—a member of the Choctaw Nation—who studies how the indigenous populations of Arizona used and interacted with and continue to use and interact with plants. Also available in Spanish.

GPS: Lava Flow

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This DragonflyTV segment follows two girls as they explore how plants grow back after being wiped out by lava flows at Hawaii Volcanoes National Park. They also learn to differentiate between pahoehoe and ‘a’a lava flows.

DragonflyTV | Camp Clear Creek

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Meet up with a group of California middle school students, the Explorers, at the Clear Creek Outdoor Education Center. DragonflyTV follows them on a nature hike in Angeles National Forest where they learn about different plant communities. What do "riparian" and "chaparral" mean? Find out!

DragonflyTV | Cactus

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Mark and Alex are junior docents at the Arizona-Sonora Desert Museum. They do presentations for museum visitors about plants and animals, especially the saguaro cactus. One visitor asked a question about the holes that are visible in the arms of the cactus: do the holes in a saguaro cactus always face the same direction?