Reading Standards for Informational Text > Quoting Accurately to Explain and Infer from Texts (CCSS.RI.5.1) Practice Test

Maya loved inventing gadgets that solved everyday problems. One winter, she noticed soggy sandwiches in her lunchbox because the ice pack warmed up by noon. She sketched a lunchbox with a tiny sensor that lit a blue dot when the inside stayed cold and turned red when it warmed. Her first model worked, but her friends complained that the metal clips were hard to open. After classmates said the clips were hard to open, Maya replaced them with magnets that snapped shut gently. She also added a pocket for a spare ice pack and wrote simple instructions for the school fair. Maya tested the box during a week of classes and kept a chart of temperatures and snack freshness. By Saturday, the judges praised how she listened to users and improved her design.

The Arctic fox survives in a place where winter lasts most of the year. In summer, the tundra turns rocky and brown; in winter, it is a bright blanket of snow. The fox's fur changes with the seasons, helping it stay hidden. Its brown-gray summer coat and snowy-white winter coat help it disappear from both hungry owls and nervous rodents. Thick fur even grows on the fox's paws, acting like warm boots on ice. The fox listens for squeaks beneath the snow, then pounces to catch a meal. When food is plentiful, it buries extra snacks to dig up later. This small hunter must avoid being hunted too, so blending into the background can mean the difference between life and death.