Sunday SAT Dec. 28th

Exploring caves can be dangerous but can also lead to interesting discoveries. For example, deep in the darkness of Cueva de Villa Luz, a cave in Mexico, are slippery formations called snotties. They are called snotties because they look life a two year old’s runny nose. If you use an electron microscopes to look at them, you will seee that snotties are bacteria; thick sticky fluids; and small amounts of minerals produced by bacteria. These small bacteria can build up until they turn into rock. The bacteria that make up snotties is acidophiles. Acidophiles live in environments that are very acidic. Snottie bacteria produce sulfuric acid and live in an environment that is similar to the inside of a car battery.

!. What statement best describes snotties?

a. snotties are bacteria that live in a car battery

b. snotties are rock formations found in caves

c. snotties were named for a cave in Mexico

d. snotties are made of bacteria, sticky fluids and minerals

2. Bases on this passage, which conclusion about snottiesis most likely to be correct?

a. snotties are found in caves everywhere

b. snottties do not need bacteria

c. you could grow snotties in a greenhouse

d. snotties create other bacteria in caves

3. What is the main idea of this passage?

a. Acilophiles are unusual organisms

b. snotties are strange formations

c. exploring caves is dangerous

d. snotties are large, slippery bacteria

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