Parents observe and analyze pill bugs during the interactive STEM keynote workshop conducted by Dr. Diana Wehrell-Grabowski.

Honeycomb Tube Worm, Phragmatopoma californica, colony and the edge of a mussel bed exposed at low tide at Natural Bridges State Beach, Santa Cruz, California, USA

Snow falling on Western Redcedar trees on the Olympic Peninsula, Washington State, USA

[Iris sibirica] Also known as Fleur-de-Lis

Patterns of water dripping down the face of a waterfall in a grotto along the Heliotrope Ridge Trail, Mount Baker-Snoqualmie National Forest, Washington State, USA

It's amazing how this hardy, autumn plant resembles a snowflake.

Columnar basalt formations along Reynisfjara Black Sand Beach, with Dyrholaey natural arch distant, in Iceland

Black Oak leaf and ice on a vernal pond in Woodland Park and Nature Preserve in Battle Creek, Michigan, USA

Ice cave interior where stream melts snow under a snowfield, near Hogsback Camp below Heliotrope Ridge on the slopes of Mount Baker, Mount Baker-Snoqualmie National Forest, Washington State, USA

Oriental Bittersweet, Celastrus orbiculatus, an invasive vine twisting toward forest canopy, Woodland Park and Nature Preserve, Battle Creek, Michigan, USA

Ripples catching sunlight on the surface of Mitchell Creek, Clay Cliffs Nature Area in Big Rapids, Michigan, USA

Cloudy morning light on the Navajo Sandstone formations of White Pocket, Vermilion Cliffs National Monument, Arizona, USA

Ice cave interior where stream melts snow under a snowfield, near Hogsback Camp below Heliotrope Ridge on the slopes of Mount Baker, Mount Baker-Snoqualmie National Forest, Washington State, USA

Intricate ice crystals growing on a window pane in winter in Michigan, USA

Parents analyze structure and function in objects from nature during interactive keynote STEM workshop for parents conducted by Dr. Diana Wehrell-Grabowski.

Bubbles, created in winter by the photographer, rapidly form ice crystals on the inside surfaces, Michigan, USA,

Sandbars create an interesting pattern along the shoreline of this national par k.

Bubbles, created in winter by the photographer, rapidly form ice crystals on the inside surfaces, Michigan, USA,

Red Pine, Pinus resinosa, plantation in central Michigan, USA

Shadows of dried prairie plants from the previous year's growing season on a boardwalk in Badlands National Park, South Dakota, USA

Strybing. Sunlit.

Annual Garden Tour in Wallingford district of Seattle, WA

Hamma Hamma Living Legacy Trail dedicated to the accomplishments of the CCC Boys during the Great Depression, Olympic National Forest, Washington State, USA,

Bubbles, created in winter by the photographer, rapidly form ice crystals on the inside surfaces, Michigan, USA,

Patterns of water dripping down the face of a waterfall in a grotto along the Heliotrope Ridge Trail, Mount Baker-Snoqualmie National Forest, Washington State, USA

Seattle, Rose Garden

Parents analyze structure and function in objects from nature during interactive keynote STEM workshop for parents conducted by Dr. Diana Wehrell-Grabowski.

Navajo Sandstone shaped like cauliflower, cracked into polygons, at White Pocket, Vermilion Cliffs National Monument, Arizona, USA

Frost crystals growing on a window pane after a frigid night, Central Michigan, USA

Parents analyze structure and function in objects from nature during interactive keynote STEM workshop for parents conducted by Dr. Diana Wehrell-Grabowski.

eastern box turtle or wood turtle?

Eastern Amberwing Dragonfly in garden.

Quaking Aspen, Populus tremuloides, forest of bare branches along beginning of Wheeler Peak Scenic Trail in Great Basin National Park, Nevada, USA

Also known as Crested Iris [Iris japonica]

Fallen American Beech, Fagus grandifolia, leaves in the Ott Biological Preserve, Calhoun County, Michigan, USA

eastern box turtle or wood turtle?