Polar bears live in the Arctic. Their thick fur and a layer of fat keep them warm in freezing temperatures. They hunt seals on the sea ice. What do polar bears mainly hunt?
- APenguins
- BSeals
- CReindeer
- DSalmon
Polar bears live in the Arctic. Their thick fur and a layer of fat keep them warm in freezing temperatures. They hunt seals on the sea ice. What do polar bears mainly hunt?
Wool comes from sheep. Once a year, farmers shear the sheep, cutting off their thick coats. The wool is then cleaned, spun into yarn and used to make clothes. What happens to the wool right after it is cut off?
The moon does not make its own light. What we see as moonlight is sunlight that bounces off the moon’s surface. According to the passage, what is moonlight?
In the 1840s, the doctor Ignaz Semmelweis noticed that many mothers died after childbirth in wards where doctors came straight from performing autopsies. When he required doctors to wash their hands in a chlorine solution, the death rate dropped sharply. What does the passage suggest?
“Scientists classify a tomato as a fruit because it develops from a flower and contains seeds. In cooking, however, it is usually treated as a vegetable.” What does the passage explain?
“The storm knocked down power lines across the county. Schools closed, and many families spent the night by candlelight.” What was the effect of the fallen power lines?
“The forest was eerily quiet. No birds sang, and the usual rustle of small animals had stopped. Then, far off, came a low rumble of thunder.” What mood does the author create?
“Patient A’s heart rate: 72 at 8 a.m., 74 at noon, 71 at 4 p.m. Patient B’s heart rate: 70 at 8 a.m., 95 at noon, 118 at 4 p.m.” Which patient should the nurse be more concerned about, and why?
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