esker

"The scout was responsible for winding the bugle to signal morning wake-up. "

"The park rangers warned the hikers about the possibility of encountering bears on the trail. "

"After the flood, we found strange deposits of dark, shiny rock in our backyard that were not part of the local soil. "

"Follow that car!"

"You can create the color orange by mixing yellow and red."

"They warned that the effects of glacier melting on water resources are becoming “increasingly serious” for China."

"The children were running to catch the school bus. "

"the narrows of New York harbor"

"The books were stacked neatly beneath the desk. "

"We followed every bend of the sinuous river."

"The stream ran alongside the school playground. "

"The construction crew spread gravel on the new road section to improve its surface. "