Passage 1

Ecuador, in South America, is home to 417 types of frogs and toads. Many of these species, or types of frogs, are at risk of dying out. In the last 50 years, many amphibian species have gone extinct. Salamanders, frogs, and toads are all amphibians. Amphibians are animals that spend part of their life in water and part on land, and have backbones. Amphibians must live near water. Amphibians are in trouble because their habitat is being destroyed as trees are being cut down to make room for farms and roads. Amphibians also absorb pollution easily, because they breathe through their skin. Amphibians are usually the first to disappear when an environment is under threat from pollution. Due to pollution, some frogs are born with deformed, or wrongly shaped, body parts, such as extra legs and eyes. Frogs with deformed body parts are a clue for scientists that an environment is suffering. Between the destruction of their habitats and risks to frogs from pollution, frogs are at risk of endangerment and extinction. 

Scientists are working to save amphibians from their plight. Scientists want the government to pass laws that protect amphibian habitats and limit pollution. 

Passage 2

My name is Maria and I am an amphibian conservation biologist. My job is to protect amphibians and their natural habitats, develop educational programs and exhibits to engage the public about amphibian conservation, and research to develop tools that will allow scientists to reintroduce amphibians back into the wild. Conservation biologists are scientists who study and protect animals and their environments.  I work in a zoo, but I often travel to places like Ecuador or Brazil to observe a variety of amphibians in their natural habitats. Brazil, for example, has 1,022 different types of frogs, toads and salamanders! In my work at the zoo, I specialize in only a small portion of that number. Here in the zoo, we have many amphibians in our care because some or all of their natural habitats were destroyed.  We are not alone in our work to protect amphibians. Many people, in many kinds of jobs, are helping protect amphibians and their habitats. I partner with other scientists and lawyers, like my friend Fernanda,  to help create laws that best support the conservation, or protection, of amphibians. Fernanda is an environmental lawyer who works to create laws like the Endangered Species Act that protect wildlife and their homes. She, in turn, needs to partner with government workers who can lobby and vote to help get laws passed. Together, our goal is to work together to build a world where these amphibians have safe space to live outside of the zoo, in their natural habitat, protected from pollution or loss of space. We are working with a facility in Brazil to build protected space for amphibians to be released from the zoo and into a space where they can thrive. 

In passage 2, what does the word “lobby” most nearly mean?

My friend and I will “part” ways after lunch, and I won't see him until he returns from the doctor.

In this sentence, what does “part” mean?

The girl’s face, satisfied and serene, showed her feelings of contentment. 

In this sentence, what does “contentment” mean?

Noah excelled in basketball, he was very talented at sports. 

In this sentence, what does “excelled” mean?

 I don’t want to exaggerate and say that the chocolate was the best I ever had, because it was not. 

In the sentence, what does the word “exaggerate” mean?

Read the sentences and determine the meaning of the underlined word using context clues or your prior knowledge.

Amy could not decide on a restaurant for her birthday dinner. She picked The Pie Emporium as the tentative location until she had a chance to research other places. She wanted to leave her options open in case she had a better idea.

What does the word tentative mean in the context of the sentences above?

Read the following sentences and determine the underlined word’s meaning using context clues or your prior knowledge.

The dog did not want to do the trick without a concrete reward. A “good boy” or clap of the hands was not enough; he wanted a pat on the head or a delicious treat! Words and cheers were not what this pup was after!

What does the word concrete mean?

In the following paragraph, what is the meaning of the underlined word based on the context?

One complaint is that the funds that YES distributes have disproportionately gone to young people from low-income families. Though no one has claimed that any of the recipients of YES funds have been undeserving, several families have brought lawsuits claiming that their requests for funding were rejected because of the families’ high levels of income.

Read the sentences and determine the meaning of the underlined word using context clues or your prior knowledge.

Rebecca was so excited to see her cousin Sharon after months of living in different states. She felt guilty for not writing to her as she had promised. When she approached Sharon with open arms, Sharon responded by turning her back and walking away. She thought she would be mad but didn’t think she would be this hostile.

What does the word hostile mean in the context of the sentences above?

Inventions

Every day it seems, new inventions surface that promise to add value to our day-to-day lives. But did you know, many of the inventions we interact with daily were developed entirely by accident? 

Take the microwave, for instance. This accidental invention was developed by engineer Percy Spencer who, upon experimenting with a microwave-emitting magnetron, found that the candy bar in his pocket had begun to melt. Spencer was then able to harness this radiation into the microwave we use today to make snack time a speedy process!

Perhaps one of today’s most well-known accidental inventions, the potato chip, was born when a customer kept requesting that his french fries be sliced thinner and made crispier. Though chef George Crum responded with the chips as a joke, they quickly became a favorite snack worldwide! 

Even the match is a result of accidental invention. When pharmacist John Walker was stirring chemicals, he noticed that the end of his stirring stick had dried into a hardened lump. When attempting to scrape the dried residue off, a flame sparked, and so did Walker’s idea to turn this accident into a helpful tool!

So, the next time your science experiment doesn’t go as planned, or you burn what you have cooked on the stove, keep in mind that some of today’s most valued inventions were discovered when the inventor least expected it!

In the context of paragraph 2, “harness” most nearly means