Text 1: Green roofs have soil and plants that shade and cool a building. Text 2: The plants also feed and shelter bees and butterflies. According to the two texts, what do green roofs do?

Text 1: Oysters filter algae from water as they feed. Text 2: Clean water lets sunlight reach grasses that shelter crabs and fish. Why are oyster reefs important?

Text 1: Some rural students live far from a public library. Text 2: A bookmobile drives library books to rural towns on a schedule. What are both texts about?

Text 1: Bison graze unevenly, leaving some prairie grasses untouched. Text 2: Their waste also returns nutrients to the soil. How do bison help prairie grasses grow?

Text 1: Weather satellites watch clouds and storms from space. Text 2: Forecasters use satellite images to warn families early. How do satellites help during storms?

Text 1: Buried food scraps release methane gas in landfills. Text 2: Composting scraps with air makes less methane and feeds gardens. What does composting do?

Text 1: Mangrove roots trap mud and slow erosion on coasts. Text 2: The roots also shelter young fish and crabs. What do mangrove roots do for coasts and sea life?

Text 1: Weathering turns volcanic ash into mineral-rich soil. Text 2: Farmers on volcanic slopes grow strong crops in that soil. What happens to soil near a volcano?

Text 1: Loud noise can permanently damage tiny ear hair cells. Text 2: Musician earplugs lower volume while keeping music clear. What do musician earplugs do?

Text 1: A solar oven uses sunlight to heat a dark box. Text 2: On cloudy days a solar oven may not get hot enough to cook. What do solar ovens need to cook well?

Text 1: Turtle hatchlings crawl toward the brightest light at night. Text 2: Beachfront lights can lead hatchlings the wrong way. What can affect which way hatchlings crawl?

Text 1: Old paper is cleaned and pressed into new paper products. Text 2: Paper fibers can only be recycled about five to seven times. What do both texts explain about recycled paper?

Text 1: Bats eat hundreds of insects like moths and mosquitoes nightly. Text 2: Eating crop pests saves farmers money on pest control. How do bats help people?

Text 1: A walking school bus follows a planned route with adults. Text 2: Parent volunteers take turns leading the walking group. How does a walking school bus work?

Text 1: A dam can block salmon from swimming upstream to spawn. Text 2: Some dams add fish ladders so salmon can swim around them. Which problem from Text 1 does Text 2 offer a solution to?

Text 1: Banneker built a clock and taught himself astronomy from books. Text 2: He later published almanacs and wrote against slavery. Which fact appears only in Text 2?

Text 1: Snowflakes form six sides as ice crystals freeze and fall. Text 2: Wilson Bentley photographed thousands of snowflakes in the 1900s. What does Text 2 add that Text 1 does not?

Text 1: National parks protect land, wildlife, and history, like Yellowstone. Text 2: Rangers patrol trails and study wildlife and weather. What does Text 2 describe that Text 1 does not?

Text 1: The Erie Canal opened in 1825, linking the Hudson River to Lake Erie. Text 2: The canal cut shipping costs and helped towns grow. What does Text 2 add about the Erie Canal?

Text 1: A honeybee's waggle dance signals a flower's direction and distance. Text 2: Bees also use a flower's color, shape, and scent. What does Text 2 add about how bees find food?