polyhedra

"The bacteria are multiplying quickly in the warm milk. "

"The asteroid belt consists of a collection of dust, rubble, and minor planets."

"The science textbook included a figure showing the different stages of a plant's growth. "

"Can you duplicate this kind of key?"

"The dog is exploring the backyard for his lost ball. "

"My son is learning about geometry in his math class, studying how shapes relate to each other in space. "

"The moving company used cardboard boxes to pack all the family's belongings. "

"The store displayed the new fall clothing in its front window. "

"She was smiling at her baby brother. "

"The straight path to the school led past the park. "

"During our history lesson, we learned that the pharaohs of ancient Egypt were buried inside enormous stone pyramids. "

"A mirror reflects the light that shines on it."