Our skin makes vitamin D when it is exposed to sunlight. Vitamin D helps the body take in calcium, which keeps bones strong. What does vitamin D help the body do?
- AFight off colds
- BTake in calcium
- CGrow more hair
- DDigest sugar
Our skin makes vitamin D when it is exposed to sunlight. Vitamin D helps the body take in calcium, which keeps bones strong. What does vitamin D help the body do?
The heart is a muscle about the size of a fist. It pumps blood through the body day and night. In an adult at rest, it beats about 60 to 100 times a minute. According to the passage, how big is the heart?
“The old man’s hands were wrinkled and spotted, and he walked with a cane.” Which detail tells you that the man is old?
A patient reads: “Take this medicine on an empty stomach, one hour before breakfast.” She usually eats breakfast at 8 a.m. When should she take the medicine?
Washing hands with soap for at least 20 seconds removes many germs. Soap breaks up the oily layer that holds germs on the skin, and rinsing washes them away. What is the author’s main purpose?
“It’s just a scratch,” said Max, though his knee was bleeding badly and he could hardly stand. What does this suggest about Max?
“By 1900, cities were growing fast. Factories drew workers from farms, and crowded housing led to the spread of disease.” Which cause-and-effect chain does the passage describe?
Passage A: “Hospital food should be cooked fresh on site to improve taste.” Passage B: “Cooking on site costs more and needs more kitchen staff.” Which question would best help decide between the two views?
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