Free printable SSAT practice test for Grade 9

Every Saturday from June to September, Teo's grandfather set up a folding table at the end of the market row, between a man who sharpened knives and a woman whose goat cheese drew a line by eight o'clock. The table held thirty jars of honey arranged by color, from a pale gold that was almost white to a brown so dark it looked like coffee held up to a window.

Teo was fifteen, and he had agreed to help for one reason: his grandfather paid in cash. He had not counted on how visible the end of the row would be. Anyone walking from the parking lot to the bakery passed within six feet of him, and by the second week he had developed a habit of studying his phone whenever a group of teenagers drifted by.

His grandfather noticed, of course. He noticed everything about bees, and Teo suspected he had long ago stopped distinguishing between bees and grandsons. But he said nothing. He only talked, in his slow and steady way, to whoever stopped. He explained that the pale honey came from clover in early summer and the dark from buckwheat in August. He let children hold a jar up to the light. He told one woman that honey almost never spoils, and when she looked doubtful, he did not argue; he simply handed her a spoon.

Teo heard all of it whether he wanted to or not.

In late July, Dani Ortiz from his chemistry class stopped at the table with her older sister. Teo felt his face grow warm. He considered pretending to be a stranger who happened to be standing there.

"Why are they all different colors?" Dani's sister asked, pointing. "Is the dark one burnt or something?"

Teo's grandfather was bent over the cash box, counting change. He did not look up.

Teo heard himself answer. "It depends on the flowers," he said. "The bees go wherever things are blooming. Clover in June is light. Buckwheat later is dark, and it tastes almost like molasses." He paused, then picked up a spoon. "You can try it. People either love it or think it tastes like a barn."

The sister tried it and made a face, and Dani laughed and tried it and bought a jar. When they had gone, Teo realized he had not once reached for his phone.

His grandfather closed the cash box. "Barn," he said thoughtfully, as if testing the word. "That is not how I would describe it."

"It's how she would," Teo said.

The old man considered this, then nodded once, the way he nodded when a hive turned out to be healthier than he had feared. The next Saturday, without being asked, Teo arrived early and arranged the jars himself, from lightest to darkest.

In the last days of August 1854, cholera tore through a few crowded blocks of Soho, in central London. Within roughly ten days, hundreds of people who lived near Broad Street were dead, many of them within a day or two of falling ill. Families fled. Shops closed. Those who stayed waited to learn who would be next.

Most physicians of the time believed that cholera spread through "miasma," a poisonous vapor thought to rise from filth and rotting matter. The theory had obvious appeal in a city where sewage collected in cellars and the summer air could be foul. It also suggested a remedy: clear away the smell, and the disease would go with it.

John Snow, a London physician then best known for his work with anesthesia, was not convinced. He had argued for several years that cholera was carried in contaminated water and entered the body through the mouth. The Soho outbreak gave him a chance to test the idea. He obtained the addresses of the dead and went door to door, asking where each household got its water.

The pattern he found was striking. The deaths clustered around a public pump on Broad Street and thinned out with distance from it. Just as revealing were the exceptions. A large workhouse nearby, home to hundreds of people, had its own well and suffered few deaths. Workers at a local brewery, who were given beer to drink, were largely spared. Meanwhile, a widow who lived miles away in Hampstead died of cholera; she had preferred the taste of the Broad Street water and had it carried to her house.

On September 7, Snow presented his evidence to local officials, and the next day the handle was removed from the pump. Snow himself later acknowledged that the outbreak was already in decline, partly because so many residents had fled, so removing the handle cannot be credited with ending it. His larger achievement lay elsewhere. In a revised edition of his work on cholera, published the following year, he included a map that marked each death as a small bar beside the address. Seen at a glance, the map made an argument that columns of numbers could not.

Even so, many officials remained skeptical. A local clergyman, Henry Whitehead, set out to disprove Snow and ended by supporting him, tracing the likely source to a cesspool a few feet from the well, in which a sick infant's diapers had been rinsed. Acceptance of the waterborne theory came slowly, and the germ responsible for cholera would not be widely recognized for decades.

Today, Snow's map is often described as a founding document of epidemiology, the study of how diseases spread through populations. Its lesson is not simply that maps are useful. It is that careful attention to the cases that do not fit can be as persuasive as the cases that do.