... and to warm up people in cold weather. camping When people go camping, they go into an outdoor area and sleep in a tent, cabin or camper. candle A candle is a stick of wax with ... worn on the back and is used to carry things. cabin A cabin is a small, simple house. camera You can take pictures with a camera. camper You can travel and sleep in a ... the object and some returns. The returning echo is interpreted to determine the object's shape, direction, distance, and texture. Dolphins (and other toothed whales) and some bats...